Write the point-slope form of a line.
y = y1 + b (x - x1)
Find a line that is perpendicular to 4x - 5y = 20that goes through the point (6, 15).
y = -1.25x + 22.5
Find explicit formulas for the sequencesu0 = 26un = un-1 + 16
t1 = -15tn = tn-1 - 3
un = 26 + 16n
tn = -12 - 3n
What is true about the equations for two lines that are parallel?
Same Slope
Where do forest fires travel faster? uphilldownhilldoesn't matter
uphill
Write an equation for a vertical line through the point (6, -4).
x = 6
Find an equation for a line one-third of the wayfrom y = -1.8x + 74.1 and y = -1.8x + 70.5.
y = -1.8x + 72.9
Find the for a line that has slope -7 and an x-intercept of 6.
y = -7x + 42
Explain the concept of interpolation.
Use a line of fit to estimate a value when the value is within the given data.
What sport is the most common cause of eye injuries in the U.S.?
baseball
s = 7 - 3n7n + 2s = 40
(26, -71)
Year 1950 1960 1970 1980 1990 2000
Price 0.27 0.31 0.36 1.19 1.15 1.56
Find the median median line for the dataand predict the price in 2010.
y = 0.027x - 51.781.74
Year 1950 1960 1970 1980 1990 2000
Price 0.27 0.31 0.36 1.19 1.15 1.56
Find the root mean square error for the median-median line.
.222
When you try to solve a system with no solution, what will happen?
You will get a statement that is untrue
Unlike most other fish, sharks have no ______?
Bones
Name 4 ways to solve a system.
TableGraphingSubstitution Elimination
Solve the system3x + 4y = 122x - 6y = 5
(46/13, 9/26)(3.539, 0.346)
Alyse earns $15.40 per hour, and she earns time and a half for working pask 8:00 P.M. Last week she worked 35 hours and earned $600.60. How many hours did she work past 8:00 P.M.?
27 regular8 after 8:00 P.M.
2x + y - z = 23x + 2y + 3z = 175x - y + 2z = 15
(2, 1, 3)
What president was once offered a contract with the Cincinnati Reds
William H. Taft