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This happens where y = 0. You can simply plug that value into the given equation, and solve for x:
0 = -4x - 4
∴ 4x = -4
∴ x = -1
So the y-intercept is (-1, 0).
The y-intercept equals 0.
Slope and y-intercept of y equals 2.5x is: Slope is 2.5 and y-intercept is 0
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Slope is zero y-intercept is -7 there is no x-intercept for this equation
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