Find the x and y intercepts of y=3/4x-7

Mathematics · College · Thu Feb 04 2021

Answered on

Given:

y = ¾x - 7

Determine the x-intercepts and y-intercepts

Solution:

We can solve for the x and y-intercepts separately. 

X-intercept
To solve for the x-intercept, we simply need to equate the value of y to 0, then solve for x.

y = ¾x - 7

0 = ¾x - 7

Transpose -7 to the other side of the equation, and multiply both sides by 4/3 in order to cancel out ¾x leaving behind x. We must also take note that in transposing a number, the sign changes.

¾x = 7

(4/3)(¾x) = (4/3)(7)

x = 28/3

x- intercept = 28/3

Y-intercept
In order to solve for the y-intercept, we simply equate x as 0, and solve for y.

y = ¾x - 7

y = ¾ (0) - 7

y = -7

y-intercept = -7

Final answer:

x- intercept = 28/3

y-intercept = -7