Question

A student say that the x-intercept of the graph x + 2y=5 is the point (0,5). Why is the student incorrect?

Answer 1

Answer:

the x-intercept is found when 0 is put into the equation for y.  

Because the x-intercept is found when the function passes through the x-axis.

x+2y=5

x=5

So x=5, y=0, the point would be (5,0).

Answer 2

Answer:

(5,0) would be the x-intercept.