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EOQ REVIEW #2
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HoopsRelations
Direct Variation
Rate of Change
Linear Equations
Scatter Plots
Q 1 pt.
Q 2 pt.
Q 3 pt.
Q 4 pt.
Q 5 pt.
Q 1 pt. Q 1 pt.Q 1 pt. Q 1 pt.
Q 2 pt. Q 2 pt. Q 2 pt. Q 2 pt.
Q 3 pt. Q 3 pt. Q 3 pt. Q 3 pt.
Q 4 pt. Q 4 pt. Q 4 pt. Q 4 pt.
Q 5 pt. Q 5 pt. Q 5 pt. Q 5 pt.
Buzzer Shot
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HoopsRelations
Direct Variation
Rate of Change
Linear Equations
Scatter Plots
Q 1 pt.
Q 2 pt.
Q 3 pt.
Q 4 pt.
Q 5 pt.
Q 1 pt. Q 1 pt.Q 1 pt. Q 1 pt.
Q 2 pt. Q 2 pt. Q 2 pt. Q 2 pt.
Q 3 pt. Q 3 pt. Q 3 pt. Q 3 pt.
Q 4 pt. Q 4 pt. Q 4 pt. Q 4 pt.
Q 5 pt. Q 5 pt. Q 5 pt. Q 5 pt.
Buzzer Shot
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1 pt. Question from Relations
Describe the purpose of the vertical-line test and how you do the test.
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1pt. Answer from Relations
You take a vertical line and make sure it only touches the
line once at all times. If it touches twice, it is not a
function.
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2 pt. Question from Relations
Evaluate f(n) = -3n-10 for n=-6
a. -28b. 8c. -4d. -16
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2 pt. Answer from Relations
b. 8
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3 pt. Question from Relations
Evaluate the function rule f(a) = 3a+5 to find the range of the function for the domain {-3,1,4}
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3 pt. Answer from Relations
{-4, 8, 17}
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4 pt. Question from Relations
Use a mapping diagram to determine whether {(3,7), (3,8), (3,-2), (3,4), (3,1)} is a function.
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4 pt. Answer from Relations
Yes
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5 pt. Question from Relations
Find a function rule. x y a. y=x+5 2 7 b. y=2x+3 5 19 c. y=4x-1 -4 -17 d. y=3x+4
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5 pt. Answer from Relations
c. y=4x-1
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1 pt. Question from Direct Variation
How do you solve a direction variation?
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1 pt. Answer from Direct Variation
Set up a proportion, cross multiply, and divide.
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2 pt. Question from Direct Variation
If y varies directly to x, what would the proportion look like?
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2 pt. Answer from Direct Variation
y/x = y/x
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3 pt. Question from Direct Variation
A varies directly as b. If A = 3 when b = 8, then find the value of A when b = 1000
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3 pt. Answer from Direct Variation
A = 375
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4 pt. Question from Direct Variation
The cost of a House in Florida is proportional to the size of the house. A 2850-square-foot house cost $182400, then what is the cost of a 3640-square-foot house?
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4 pt. Answer from Direct Variation
Cost = 232960
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5 pt. Question from Direct Variation
The amount of sale taxes on a new car is direct proportional to purchase price of the car, if a $25000 car pays $1750 in sales taxes. What is the purchase price of a new car which has a $3500 sale taxes?
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5 pt. Answer from Direct Variation
$50,000
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1 pt. Question from Rate of Change
Find the slope of (-2,3) & (4,6)
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1 pt. Answer from Rate of Change
1/2
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2 pt. Question from Rate of Change
What is the formula of rate of change?
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2 pt. Answer from Rate of Change
Change of y / change of x
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3 pt. Question from Rate of Change
What is the slope formula?
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3 pt. Answer from Rate of Change
y2 – y1 / x2 – x1
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4 pt. Question from Rate of Change
Find the Rate of Change. x y 3 6 8 16 18 36
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4 pt. Answer from Rate of Change
2
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5 pt. Question from Rate of Change
Explain how to find the rate of change.
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5 pt. Answer from Rate of Change
Find the difference in the y values, find the difference of the x values.
Create a fraction of the difference of y’s over the difference of x’s
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1 pt. Question from Linear Equations
Name the three types of Linear Equations.
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1 pt. Answer from Linear Equations
Point-Slope, Slope-Intercept,
Standard
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2 pt. Question from Linear Equations
Write an equation that goes through the points (-1,5) & (4,6)
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2 pt. Answer from Linear Equations
y-5=(-1/5)(x+1)Or
y-6=(-1/5)(x-4)Or
Y=(-1/5)x+(24/5)Or
x+5y=24
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3 pt. Question from Linear Equations
Write a point-slope equation of a line that goes through point (1,1) and has a slope of 4
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3 pt. Answer from Linear Equations
y-1=4(x-1)
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4 pt. Question from Linear Equations
If two lines are parallel, what can you tell about them?If two lines are perpendicular, what can you tell about them?
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4 pt. Answer from Linear Equations
Parallel have the same slope, never intersect.
Perpendicular have negative reciprocals, intersect at right angle.
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5 pt. Question from Linear Equations
Write an equation for a line that is perpendicular to y=3x+2 and goes through (1,4)
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5 pt. Answer from Linear Equations
y -4 = 3(x-1)
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1 pt. Question from Scatter Plots
What are the two best numbers to have for a correlation?
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1 pt. Answer from Scatter Plots
1 or -1
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2 pt. Question from Scatter Plots
How do you find the line of best fit?
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2 pt. Answer from Scatter Plots
Plug in the coordinates in the calculator, then
Stat -> Calc-> LinReg
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3 pt. Question from Scatter Plots
What is an example of a strong positive correlation?
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3 pt. Answer from Scatter Plots
Answers Vary- Partner decide if correct
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4 pt. Question from Scatter Plots
Find the best fit line for: (-1,6), (3,0), (4,2), (9,9)
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4 pt. Answer from Scatter Plots
Y=.379x+2.828
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5 pt. Question from Scatter Plots
What is the correlation for a best fit line created for the points (-8,-3), (0,2), (3,6) & (8,14)?
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5 pt. Answer from Scatter Plots
.968
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Buzzer Shot
Using the points, (3,1) & (-4, 3) put the equation in all three forms.
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Buzzer Shot Answer
y-1 = (-2/7)(x-3)
y=(-2/7)x+13/7
2x+7y=13