Answer:
(-2,-5)
Step-by-step explanation:
y=1/2x-4 and y=-2x-9
Just substitute one into the other and then solve for x. Then go back to get y.
1/2x-4=-2x-9
Add 4 on both sides
1/2x =-2x-5
Add 2x on both sides
2.5x=-5
Divide both sides by 2.5
x=-5/(2.5)=-2
Plug into y=-2x-9 to find y.
y=-2(-2)-9=4-9=-5.
Answer (-2,-5)
