D I did this before and it was right for me but trust me
Answer:
c
Step-by-step explanation:
the greater than sign turns into a less than sign when you cross multiply a negative number
and -4 times -25 is +100
whoever said b is braindead
You would plug y=2x+2 in for y in 6x-3y=-6
6x-3(2x+2)=-6
ANSWER
The system has two solutions.
EXPLANATION
The given equations are
and
We equate both equations to obtain;
This implies that,
where a=1, b=-1,c=-2.
We find the discriminant, D=b²-4ac of this equation to be;
Since the discriminant is greater than zero, it means the two functions intersected at two distinct points.
Hence the system has two solutions.
Answer:
it would be a 25% decrease