Is this what you mean this is what i understood.
X-4=10;4x+1=57
First equation solve for x.
X-4=10
Add 4 both sides
X=10+4
X=14
Second equation substitute your x answer into second equation to make both sides equal.
4x+1=57
4(14)+1=57
56+1=57
57=57
8 because 25% is 1/4 of how much he has so just multiply 2 by 4
-Opens down
-Maximum
-Y int (0,3)
-Axis of symmetry x=0
-vertex (0,3)
-(2,3) (-2,-3)
Step-by-step explanation:
You have miscopied the second equation as it contains a third variable B when there isn't a B in the answers.
Please correct it for assistance