Question

What is the x-intercept of the equation whose line is 20x + 4y = 40?

Answer 1

x-intercept is on the x-axis when y =0
so replace y by 0
then solve for x

Answer 2

2?

Answer 3

plug in x and y value to check your answer \[20(\color{red}{2}) +4(\color{Red}{0})=40\]
both sides are equal ?

Answer 4

would that be 20 times 2 and 4 times 0?

Answer 5

yes that's what i wrote ??

Answer 6

so no they r not equal

Answer 7

plug in x and y value to check your answer \[20(\color{red}{2}) +4(\color{Red}{0})=40\]
solve left side
what do yo uget ?

Answer 8

left = 40 right = 0

Answer 9

how did you get 0 at the right side ?

there is "40: at right side it stay same
you just have to solve left side