One number is 4 more than another. Their product is −4.

2 and -2

Step-by-step explanation:

Lets x be one number and u other number:

U=4+x ( u is 4 more than x)

X*u=-4 (their product is -4)

x*(x+4)=-4

X^2+4x+4=0

(X+2)^2=0

x=-2

U=4+(-2)=4-2=2

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: