Answer:
-6.3
Step-by-step explanation:
4.2x, if x = 0, then y = -6.3
it going to be number three
Answer:
6.45
Step-by-step explanation:
29.95+7.75%=32.27
32.27/5
6.45
So basically you want to isolate only one of the variable on one side so
y=-9+x^2
add 9 to both sides
y+9=x^2
square root both sides

x=