Question

Match each of the following equations according to their slope and y-intercept.

y = 1.5x - 7
m = -1.5, b = -4
y = -1.5x - 4
m
= 3, b=0
y = -3x + 4
m= -3, b = 4
y = 3x
m
= 1.5, b = -7
y = 7
m = 0,b= 7
Intro

Answer 1

Slope-intercept form: y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

y = 1.5x - 7 m = 1.5 b = -7

(y = (1.5)x + (-7) ----> y = 1.5x - 7)

y = -1.5x - 4 m = -1.5 b = -4

y = -3x + 4 m = -3 b = 4

y = 3x m = 3 b = 0

y = 7 m = 0 b = 7

(y = (0)x + 7 ---> y = 7)

Answer 2

Y = -1.5x - 4 <-----------> m = - 1.5, b = - 4

Y = 7 <-----------> m = 0, b = 7

Y = 1.5x - 7 <------------> = 1.5, b = - 7

Y = - 3x + 4 <------------> m= - 3, b = 4

Y = 3x <-------------> m = 0, b = 7

Explanation:

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