Unit 1 Review
Evaluating Functions
Domain and Range Representations
Domain and Range in the Real World
Identifying Functions
100
Simplify
3x^2+4x-3+2x^2+6x
5x^2+10x-3
100
What is the value at x=0
-16
100
What is the name of the following picture?
mapping
100
If we are reserving a place based on the number of people, is the function continuous or discrete and why?
Discrete-can't have half people
100
Is the following a function?
{(2,3),(4,3),(9,2),(2,-3)}
NO
200
Solve
4x-3=13
x=4
200
Name two ways you can evaluate function.
Plug in x and solve by hand
Use the table on desmos
200
What is the domain of the following? Is it continuous or discrete?
-3lex<4
200
The total cost of reserving a place by the hour is represented by the function. The longest you can reserve the place is 6 hours. What is the domain?
f(x)=35x+13.50
0lexle6
200
Is the following a function?
{(9,2), (4,5), (6,2)}
yes
300
Simplify the expression
(-4x^2-3x-14)+(5+7x^2+6x)
3x^2+3x-9
300
Given the function. What is f(-7)?
f(x)=4(3-x)+10
f(-7)=50
300
What is the range of the following graph?
yle0
300
Given the function. What is the value at g(-6)
g(x)=-x^2+4x-9
-69
300
Is the following a function?
No fails the VLT
400
What is the solution to the equation given?
-5/2(4m-8)=162-12m
m=71
400
What is the value of the function at x=2
0
400
What is the domain of the table? Is it continuous or discrete?
Discrete
{-2,3,5,6}
400
The following function can be used to determine how much a dealership makes based on x, the number of cars sold. What is the profit if they sell 250 cars?
h(x)=0.03x^2+45x
13,125
400
Is the following a function?
Yes passes the VLT
500
Solve for y.
-7x-2y=20
y=-7/2x-10
500
TCISD basketball team is purchasing new goals and uniforms. The uniforms will cost $1050 and the goals are $550 each. This situation is represented by the function f(x)=550x+1050. A minimum of 2 goals must be ordered and the budget allows for a maximum of 5 goals. What is the cost for 5 goals?
3800
500
TCISD basketball team is purchasing new goals and uniforms. The uniforms will cost $1250 and the goals are $520 each. This situation is represented by the function f(x)=520x+1250. A minimum of 2 goals must be ordered and the budget allows for a maximum of 5 goals. What is the domain of the situation where cost in dollars, f(x), is dependent on the number of goals purchased, x?
{2,3,4,5}
500
A baker determined the annual profit in dollars from selling pies using the following equation where n is the number of pies sold. What is the annual profit if 500 pies are sold?
p(n)=62n-0.06n^2
16000
500
What is the image called?
Is it discrete or continuous?
Function or non-function?
mapping
discrete
Non-function