Expressions& Equations
Simplify: 4x-2x + 7
2x+7
What is the output of f(x)=2x+1 when x=3
7
Solve: 2x=12
x=6
If you save $10 per week, how much do you have after 6 weeks?
$60.
What is the mean of 2,4,6,8
5
solve for x/2 + 3 =7
x=8
Is the relation {(1,2)(2,3)(3,4)(2,5)} a function?
No
Solve 3x+2 ≤ 11
x ≤ 3
A pizza costs $12 plus 1.50 per topping. Write an expression for the total cost.
12 + 1.5t
What is the mode of 3,3,5,7,8
3
Solve: 5x-4=3x+6
x=5
What is the output of f(x)= x2-4 when x = -2
0
What is the slope of a horizontal line?
0
A garden is x feet long and 3 feet wide. What is the area?
3x
Find the median of 10,12,14,16,18
14
Factor: x2-9x+30
(x-4)(x-5)
What is the y-intercept of the function f(x)= -3x+6
6
Find the Y- Intercept of y=-4x+2
2
A phone battery loses 8% per hour. write and equation for the percent remaining
P= 100-8h
what is the range of the data set: 4,9,13,16
12
x2+x-6
Compare: is f(x) = 3x-1 increasing or decreasing
increasing because slope is positve
Solve the Equation 4(x-2)=2x+6
x=7
You buy 2 books and pen for $22. Each book costs $9. how much is the pen?
$4
A student scored 70, 80, 85, 95. What is their average Score?
82.5