Question

In the equation 2x - y = 4, the x-intercept is 2 and the y-intercept is -4


Which of the graphs above represents this equation?

Answer 1

@Haksorin we need to first isolate y.
moving one of the variables over so that the equation is in the form

y = m(x)+b

y= 2x-4

to find the y intercept, we insert x = 0 into our equation

y = 2(0)-4 = 0-4 = -4

(0,-4)

so the y intercept is -4. that's the point the graph touches the y axis.

now, we put y = 0 and see what x is.

0 = 2x-4

4 = 2x

x = 2

so the x intercept is 2.


So here are you intercepts.

(2,0)
(0,-4)

Answer 2

I would say graph C corresponds to the answer.

Answer 3

Hope this helped.