slope =m =7
Y-intercept = -3 (0, -3)
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The expression for a linear equation in the slope-intercept form.
y = mx + b
m= (y2-y1)/ (x2-x1)
y-intercept is (0, b)
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Replacing the data given
y = 7 x -3
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three coordinate points
we can choose three different values of x
x=1
y = 7 x -3
y = 7*1 -3
y= 7-3
y= 4
_ _ _
(1, 4)
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x=-1
y = 7 x -3
y= 7 *(-1) -3
y= -7 -3
y= -10
_ _ _
(-1, -10)
_ _ _
x= 2
y = 7 x -3
y= 7*2 -3
y= 14 -3
y = 11
_ _ _
( 2 -11)
_ _ _
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Answer
(x, y)
(1, 4)
(-1, -10)
( 2, 11 )