Question

1) Find the x- and y- intercepts for the graph of the following equation.
5x + -4y = 20
2) Find the x- and y- intercepts for the graph of the following equation.
3x + 7y = -63
3) Find the x- and y- intercepts for the graph of the following equation.
2x + -7y = 28 That's all I need

Answer 1

Lets start with #1

Answer 2

They give us this:

5x + -4y = 20

Answer 3

that equation represents the equation of a line

Answer 4

and we know that since there is no x^2 or x^3 or any sort of weird exponent

Answer 5

Have you learned about intercepts yet?

Answer 6

Yes.

Answer 7

what does the x value equal at the y intercept?

Answer 8

Isn't it 0

Answer 9

yes!

Answer 10

so if we plug in x = 0 we can figure out what y will be when x is 0!

Answer 11

take this equation
5x + -4y = 20

change x to 0

then solve for y

Answer 12

5x + -4y = 20

5( 0) - 4y=20

Answer 13

ill let you work it out..

Answer 14

what did you get for y when x equals 0?