Question

What is the x-intercept of the graph: 2x + 4y = -10

Answer 1

The x-intercept of the line which is the graph of 2x + 4y = -10 is the point where the graph cuts the x-axis.

All points on the x-axis have a y-coordinate of 0.

So, take the equation 2x + 4y = -10 and substitute 0 for y. Then, solve the resulting equation for x. That is the x-intercept.

@AllenH666

Post you answer and we will compare, if you like.

Answer 2

so you would get 5 for the x coordiante

Answer 3

-5 actually

Answer 4

how so?

Answer 5

@lilcaboboy

---> how so?

All points on the x-axis have a y-coordinate of 0. So, take the equation 2x + 4y = -10 and substitute 0 for y. Then, solve the resulting equation for x. That is the x-intercept.

2x + 4y = -10

2x + 4*0 = -10

2x + 0 = -10

2x = -10

(1/2) * (2x) = (1/2)*(-10)

x = ?