Question

What is the x-intercept of the equation 7x + 3y = 21?

(0, 3)
(0, 7)
(3, 0)
(7, 0)

Answer 1

3,0

Explanation:

thanks to the person above

Answer 2

(3, 0)

Explanation:

we have

`7x+3y=21`

we know that

The x-intercept is the value of x when the value of y is equal to zero

so

For y=0

substitute in the equation and solve for x

`7x+3(0)=21`

`7x=21`

Divide by 7 both sides

`x=3`

therefore

The x-intercept is the point (3,0)