Functions Review

Function Notation

100

Given f(x)= 2x-4 

 

find f(4) and f(-5) 

What is 4 and -14

200

g(x) = x² + 2 

g(3) and g(-2) 

What is 11 and 6 

300

f(x) =2x-4

Find f(1/2) 

What is -3 

400

f(x) = 2x-4 

Find x when f(x) =8 

What is 6

500

f(x) = 2x²+ 4x+9 

f(-4) = 

What is 25

Find Domain and Range/interpreting Graphs

100

Number 3 A on sheet Find Domain and Range 

What is D: {-2,-1,1, 5}

Range: {-3,-2, 3, 4}

200

Number 11 on sheet 

What is b and then a 

300

Number 3 B on the sheet 

What is D: [-1,5] -1<=x<=5

R:[1,7] 1<=y<=7

400

Number 3 C on the sheet

What is Domain: All real numbers

Range: y>= -4 or [-4,infinity]

500

Number 10 on sheet 

a.) 0

b.) 3

c.) -5

d.) 0 and 3.5

e.) {-5, -2} and {0,3} 

f.) {-2,0}

g.) {3,6}

h.) [-5,6] or -5<=x<=6

i.) -4<=y <=3 or [-4,3]

j.) [-5,-2]

Average Rate of Change

100

Number 5

$78 per month 

200

Number 8 

11,454.55

300

Number 6

a.) -6

b.) -3.75

c.) Less people are sick in March 

400

Number 4 on sheet 

a.).10

b.).24

c.) 1999-2009

500

Number 16 on sheet

a.) 1.17 and yes it is constant 

b.) -1 cm/ sec no it is not constant 

Function or Not

100

Number 18 a 

NOT

200

Number 18 C 

YES 

300

Number 18 D 

YES FUNCTION 

400

Number 18 B

NOT

500

Number 18 E and F 

Not and YES 

Type of Function

100

What type of Function is 

y=mx+b 

Linear 

200

What type of function makes a parabola. Look at board for picture 

Quadratic 

300

What type of function do you multiply? And what type of function do you add and subtract 

Exponential and Linear 

400

y= ab^x is what type of function 

Exponential 

500

This table represents which type of function 

1         12

2         24

3         48

4         96

Exponential