Question

25 points for this question

Answer 1

1. Set Y to 0, solve for x. Then X can be any number greater than the answer.

y = -1.5x +7.5

0 = -1.5x +7.5

Subtract 7.5 from both sides:

-7.5 = -1.5x

Divide both sides by -1.5

X = -7.5 / -1.5x = 5

X > 5

2. The equation is the same as the first one, but now they want Y to be less than 0, so the answer would be the reverse of the first answer:

X < 5

Answer 2

1. Set Y to 0, solve for x. Then X can be any number greater than the answer.

y = -1.5x +7.5

0 = -1.5x +7.5

Subtract 7.5 from both sides:

-7.5 = -1.5x

Divide both sides by -1.5

X = -7.5 / -1.5x = 5

X > 5

2. The equation is the same as the first one, but now they want Y to be less than 0, so the answer would be the reverse of the first answer:

X < 5