1. 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
3. Ch6.3_PointSlopeForm.notebook December 05, 2011
Write the equation of the following
lines in slopeintercept form
m = 3, b = 6 m = 0, b = 2
m = 2
Passes through (3,4)
4. Ch6.3_PointSlopeForm.notebook December 05, 2011
Point Slope Form
only needs slope and a point
to 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)
Point:
Slope:
Write the EQ of a line with slope = .5
that goes through (2 , 0)
Point:
Slope:
Write the EQ of a line
that goes through (1 , 3) and (0 , 4)
Point:
Slope:
5. Ch6.3_PointSlopeForm.notebook December 05, 2011
y y1 = m(x x1)
Write the EQ of a line
parallel to y 2x = 3
that goes through (1 , 2)
Write the EQ of a line
perpendicular to 4x + 2y = 6
that goes through (2, 7)
Write the following equation
in slopeintercept form.
y + 2 = 5(x 3)
6. Ch6.3_PointSlopeForm.notebook December 05, 2011
RECAP
SlopeIntercept Form y = mx + b
Point Slope Form y y1 = m(x x1)
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