Question

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

(0.3)
O
(0.7)
(3.0)
(7.0)

Answer 1

Answer: (3,0)

Step-by-step explanation: To find the x-intercept, we plug a 0 in for y.

So we have 7x + 3(0) = 21 or 7x = 21 which means that x = 3.

So we can write this as (3,0).