ch6.3 point-slope form

6
Ch6.3_PointSlopeForm.notebook December 05, 2011 What is the equation of the line shown below? y = mx + b A) y = 5x 5 B) y = 3x 5 C) y = 5x + 5 D) y = 3x 5

Upload: mdicken

Post on 19-Jan-2015

200 views

Category:

Technology


1 download

DESCRIPTION

 

TRANSCRIPT

Page 1: Ch6.3 Point-Slope Form

Ch6.3_PointSlopeForm.notebook December 05, 2011

What is the equation ofthe line shown below?

y = mx + b

A) y = ­5x ­ 5B) y = 3x ­ 5C) y = 5x + 5D) y = ­3x ­ 5

Page 2: Ch6.3 Point-Slope Form

Ch6.3_PointSlopeForm.notebook December 05, 2011

Chapter 6.3Point ­ Slope Form

Page 3: Ch6.3 Point-Slope Form

Ch6.3_PointSlopeForm.notebook December 05, 2011

Write the equation of the followinglines in slope­intercept form

m = ­3, b = 6 m = 0, b = 2

m = 2Passes through (3,4)

Page 4: Ch6.3 Point-Slope Form

Ch6.3_PointSlopeForm.notebook December 05, 2011

Point ­ Slope Formonly needs slope and a pointto write the equation of the line

Slope: m Point: (x1 , y1)

y ­ y1 = m(x ­ x1)Example

Write the EQ of a line with slope = ­4 that goes through (1.5 , ­3) 

Write the EQ of a line with slope = .5 that goes through (­2 , 0) 

Write the EQ of a line that goes through (­1 , 3) and (0 , 4) 

Point:

Slope:

Point:

Slope:

Point:

Slope:

Page 5: Ch6.3 Point-Slope Form

Ch6.3_PointSlopeForm.notebook December 05, 2011

Write the EQ of a lineparallel to y ­ 2x = 3that goes through (1 , 2)

y ­ y1 = m(x ­ x1)

Write the EQ of a lineperpendicular to 4x + 2y = 6that goes through (2, ­7)

Write the following equationin slope­intercept form.y + 2 = 5(x ­ 3)

Page 6: Ch6.3 Point-Slope Form

Ch6.3_PointSlopeForm.notebook December 05, 2011

RECAPy = mx + bSlope­Intercept Form

Point ­ Slope Form y ­ y1 = m(x ­ x1)

Page 256#3 ­ 20