Simplify: 3x + 2x - 7
5x - 7
What is the slope of the line: y = - 3x + 4?
m = - 3
Solve:
x + y = 6
x - y = 2
(4, 2)
What is the mode of this data set?
6, 9, 6, 4, 8, 10, 6
6
What is the equation of a linear function?
y = mx + b
Factor: x2 + 7x + 12
(x + 3)(x + 4)
Identify the y-intercept of: y = 2x - 9
b = - 9
Solve:
2x + 3y = 12
x - y = 1
(3, 2)
What is the median of this data set?
10, 4, 7, 6, 3, 9, 8
7
What is the name of the set of all possible output values of a function?
Range
x = - 6
Write the equation of a line with slope 2 passing through (1,5)
y = 2x + 3
Solve:
y = 2x
x + y = 12
(4, 8)
What is Q1 of the data set?
3, 7, 8, 11, 14, 16, 17
7
What is the formula for slope?
m = (Y2 - Y1) / (X2 - X1)
Write an expression for: "the product of 5 and the sum of x and 2."
5(x + 2)
A line passes through (3, -2) and (7, 6). What is the slope?
m = 2
If we eliminate the y variable in the following system of equations, what will be left once you perform the operation.
8x = 20
Identify the outlier(s): 5, 7, 8, 6, 20, 9
20
The term used to describe a special type of relationship where each input value is paired with only one output value.
Function
Solve by factoring: x2 - 5x = 14
x = 7 or x = - 2
What type of line has a slope of zero?
Horizontal line
School sells 50 tickets, earns $370. Adults $10, students $5. How many adults?
24
What is the mean of this student's scores:
80, 75, 90, 95, 100, 85, 70, 85
85
You can use this test on a graph to determine whether the relation is a function.