Question

An equation is shown below:
5x+2y=10
Select THREE correct responses.
A.

When solved for y, the equation is y=−5/2x+5
B.

When solved for y, the equation is y=−5x+5
C.

When x=0, the value of y is 5.
D.

When x=0, the value of y is 10.
E.

When y=−5, the value of x is 4.
F.

When y=−5, the value of x is 2.

Answer 1

Correct answers: A, C, E.

Brief checks:
- Solve for y: 2y = 10 − 5x ⇒ y = −(5/2)x + 5, so A is correct.
- x = 0 ⇒ 2y = 10 ⇒ y = 5, so C is correct.
- y = −5 ⇒ 5x + 2(−5) = 10 ⇒ 5x − 10 = 10 ⇒ 5x = 20 ⇒ x = 4, so E is correct.