Algebra 2 Unit 6 Lesson 7
11) If x=4-5i and y=-4-7i, what is x+y?
-12i
10) If x=3+5i and y=-2+7i ,what is y-x?
-5+2i
2) Choose the best answer. You can determine if the inverse of a polynomial function is a function by using the ____ line test on the polynomial function.
Horizontal
horizontal line test
If every horizontal line intersects a graph of a function just once, then the function is one-to-one and therefore an inverse function exists.
vertical line test
If every vertical line intersects a graph just once, the graph is of a function.
8) Apply the horizontal or vertical line test to determine if the inverse of the function will be a function. Is the inverse of the function a function? _____
No
4) Determine the inverse of the function by interchanging the variables and solving for y in terms of x y=2x+3
y=1/2x-3/2
5) Determine the inverse of the function by interchanging the variables and solving for y in terms of x. y=1/2x-3/2
y=2x+3
3) Choose the best answer. The graph of the inverse of a polynomial function is the reflection of the graph of the polynomial function over the line ___.
y=x
7) Determine the inverse of the function by interchanging the variables and solving for y in terms of x y=x'2-1
y=±√x+1
4) Determine the inverse of the function by interchanging the variables and solving for y in terms of x y=4x'2
y=±√ˣ/₂
1) Choose the best answer. You can determine if the inverse of a polynomial function is a function by using the ____ line test on the inverse.
Vertical
9) Apply the horizontal or vertical line test to determine if the inverse of the function will be a function. Is the inverse of the function a function? _____
Yes