Chapter 8
Find the zeros of x^2-36
x=6 and x=-6
Solve the equation. x^2=25
x=5,-5
Describe the domain. 8(x^1/2)
x is greater than or equal to 0
The method of simplifying radicals is called ________.
The prison method
Find the zeros. (x-1)(x-3)(x+3)
x=1,3,-3
Simplify the expression. 20^1/2
2(5^1/2)
Describe the range of (x-2)^1/3
All real numbers
The inverse of a function is found by _______.
Switching the x and y coordinates
A graph is even when its _____
Symmetric across the y-axis
Simplify the expression. 16^1/3
2(2^1/3)
Solve for X. x^1/2-5=18
x=64
A graph is odd when its ______
Symmetric about the origin
Compare 2.5x^2 to x^2
Vertical stretch by 2.5
Complete the square. x^2-6x
x^2-6x-9
Find the inverse. (2,1), (4,-3), (6,7), (8,1) (10,-4).
(1,2), (-3,4), (7,6), (1,8), (-4,10)
The line in a square root of cube root function is called a(n) ______.
Radical
Find the zeros. x^2-11x+18
x=9,2
Complete the square. x^2-5x
x^2-5x-7.5 or x^2-5x-15/2
Describe the transformations. 3(1/5x-12)^1/2+10
V. stretch by 3. H. stretch by 5. Right 12. Up 10.
The test to see if something is a function is called ________.
The vertical line test