Unit 1

Question 1

Relations

Answer 1

A set of ordered pairs

Question 2

Functions

Answer 2

A relation where every x value has only one y value

Question 3

If it is a function the y term has what exponent?

Answer 3

1

Question 4

Perpendicular lines have…

Answer 4

Negative reciprocal

Question 5

Function notation

Answer 5

f(x)

Question 6

Linear function

Answer 6

y=x (0,0) (1,1) (2,2) D= all numbers R= all numbers

Question 7

Quadratic function

Answer 7

y=x^2 (0,0) (1,1) (2,4) (3,9) D= all numbers R= all numbers greater then 0

Question 8

Cubic function

Answer 8

y=x^3 (0,0) (1,1) (2,8) D= all numbers R= all numbers

Question 9

Absolute value function

Answer 9

y=|x| (0,0) (1,1) (2,2) (-1,1) D= all numbers R= all numbers greater then 0

Question 10

Radical function

Answer 10

y=√x (0,0) (1,1) (4,2) D= all numbers greater then 0 R= all numbers greater then 0

Question 11

Exponential function

Answer 11

y=x^2 (0,1) (1,2) (2,4) D= all numbers R= all numbers greater then 0

Question 12

Rational function

Answer 12

y=1/x (1,1) (2,0.5) (0.5,2) D= all numbers except for 0 R= all numbers except for 0

Question 13

Circle function

Answer 13

9=x^2+y^2 (3,3) (-3,3) (3,-3) (-3,-3) D= all numbers greater then -3 and less then 3 R= all numbers greater then -3 and less then 3

Question 14

Domain

Answer 14

All possible x values

Question 15

Range

Answer 15

All possible y values

Question 16

Mapping notation

Answer 16

(x,y) =(1/kx+h, ay+c)

Question 17

Inverse of a function

Answer 17

Interchange x and then solve for y