Three times the square of a number means 
Nine times a number is 
If these quantities must be equal, we have

We can divide both sides by 3 to get

Since x is non-zero, we can divide both sides by x:

Answer:
x ≥ −4
The line is shaded to the right of −4 where the values are greater. The closed circle indicates that −4 is include
I’m pretty sure u just have to subtract 225-80
Answer:
Step-by-step explanation:
(-0.5-0.5)/(3+ 3) = 1/6
y - 0.5 = 1/6(x + 3)
y - 0.5 = 1/6x + 0.5
y = 1/6x + 1