Question

What is the x-intercept of the graph of the equation 3x-4y=20

Answer 1

(20/3,0) is your x-intercept

Explanation:

To find x-intercept, let y = 0

`\displaystyle{3x = 20}`

Solve for x, divide both sides by 3:

`\displaystyle{ (3x)/(3) = (20)/(3)} \\ \\ \displaystyle{ x = (20)/(3)}`

Hence, the x-intercept is (20/3,0). We write in order pair since it's x-intercept and x = 20/3 at y = 0