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Write an equation of the line in slope-intercept form.

y=

Write an equation of the line in slope-intercept form. y=-example-1

1 Answer

4 votes


\huge\boxed{y=-(4)/(3)}

To find the equation for a line in slope-intercept form, we need to find the slope and the y-intercept.

The y-intercept is easy to find. It's just the value of
x when
y=0. In this case, the y-intercept is
0 since the line goes through the origin.

To find the slope, we use the slope formula, where
(x_1, y_1) and
(x_2, y_2) are two known points. In this case, we'll use the only two points we have:
(0, 0) and
(-3, 4)


\begin{aligned}m&=(y_2-y_1)/(x_2-x_1)\\&=(4-0)/(-3-0)\\&=(4)/(-3)\\&=-(4)/(3)\end{aligned}

Finally, we put it all together in slope-intercept form, where
m is the slope and
b is the y-intercept.


y=mx+b\\y=-(4)/(3)x+0\\\boxed{y=-(4)/(3)}

User LI Xuhong
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