Means the number you can use
remember we can't divide by zero
domain is x^2-9
set to zero to find values we can't use
x^2-9=0
x^2=9
x=+/-3
domain=all real numbers except -3 and 3
Answer:
1. vertical-line test
2.y=x
3.x
4.domain
Step-by-step explanation:
I just did it on edg and it’s right.
Answer:
x = 4y - 4
Step-by-step explanation:
y = ¹/₄.x + 1
y - 1 = ¹/₄.x
x = 4(y - 1)
x = 4y - 4
