Evaluating Functions
Am I a function?
Translating & Solving/
Word problems
Word problems
Domain & Range
Mixed Review
100
Find g(5) when g(x) = 3x-7
What is 8?
100
Is this a function and why?
What is no, because x's repeat at 8?
100
Translate the following and then solve:
14 more than twice a number is 70.
What is,
2x + 14 = 70 or 14 + 2x = 70
x = 28
100
Find the range of the following set:
{(2, 1) (-1, 0) (-1, 3) (0, 2) (-5, 1)}
What is, R:{0, 1, 2, 3}
200
Find h(-6) when h(x) = -x +6
What is 12?
200
Does the following table represent a function?
x y
1 2
2 5
6 2
2 9
5 1
What is No, because the input (x) of 2 has two different outputs (y)?
200
Find two consecutive even integers whose sum is -38.
What is, -20 and -18?
Let: first # = x Second # = x+2
x + x + 2 = -38
x=-20
200
For the function {(0,1), (1,-3), (2,-4), (-4,1)}, what is the domain and range?
What is,
D:{0, 1, 2, -4}
R:{1, -3, -4}
300
Find g(x+4) when g(x) = 3x-7
What is 3x +5?
300
Does the following represent a function? Why or why not?
What is, No because -2 goes to both 1 and 3.
300
Translate the following and then solve:
Two times the sum of a number and nine is eight.
What is,
2(x + 9) = 8 or 2(9 + x) = 8
x = -5
300
Find the domain and range of the following:
{(0, 1) (0, 2) (0, 0) (0, -2) (0, -8)}
What is,
D: {0}
R: {-8, -2, 0, 1, 2}
300
Translate the following and then solve:
Three more than twice a number is nine.
What is..
3 + 2x = 9 or 2x + 3 = 9
x = 3
400
If f(x) = 53, find x when f(x) = -4x+1
What is -13?
400
Is the following relation a function?
{(-3, 6), (5, -4), (0,1), (7,-3), (-3, 6), (-8, 0)}
What is,
Yes the relation is a function!
400
Translate the following and then solve:
4 less than 5 times a number is the same as 3 times the sum of the number and 7, increase by 1.
What is,
5x - 4 = 3(x + 7) + 1 or 5x - 4 = 3(7 + x) + 1
x = 13
400
Find the domain of the following set:
{(2, 1) (-1, 0) (-1, 3) (0, 2) (-5, 1)}
What is, D:{-5, -1, 0, 2}
400
You have two times as many dimes as nickels and the total amount of money is $3.00. How many dimes and nickels do you have?
What is, 24 Dimes and 12 Nickles?
Dimes = 2x Nickles = x
(.05x + 0.2x = 3)
x = 12