Question

For number 8 what are the x-intercept and the y-intercept of the graph of 8x-7y=-56

Answer 1

D choice is the answer.

Explanation:

To find the x-intercept, let y = 0. Therefore:

`\displaystyle{8x-7y=-56}\\\\\displaystyle{8x=-56}\\\\\displaystyle{x=-7}`

Hence, the graph has an x-intercept at (-7,0).

To find the y-intercept, let x = 0. Therefore:

`\displaystyle{-7y=-56}\\\\\displaystyle{y=8}`

Hence, the graph has a y-intercept at (8,0).