What is the equation of the line with an x-intercept of -2 and a y-intercept of 1?

Question

igreen · Answer

You have two points already. (-2, 0) and (0, 1).

igreen · Answer

Find the slope, then put it in the form of y = mx + b.

igreen · Answer

Slope formula: $m = \dfrac{y_2-y_1}{x_2-x_1}$

$y_2 = 1$
$y_1 = 0$

$x_2 = 0$
$x_1 = -2$

$m = \dfrac{1-0}{0--2}$

$m = \dfrac{1-0}{0+2}$

$m = \dfrac{1}{2}$

So your slope is 1/2.

igreen · Answer

y = mx + b

Where m = slope and b = y-intercept.

You already have the y-intercept and slope so:

y = 1/2x + 1

igreen · Answer

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