Expressions
Equations
Inequalities
Functions
Linear Functions
100
Write an expression for "the product of a number and 17 increased by 2"
17x + 2
100
Solve: 4x - 2(2x + 3) = x - 7
x = 1
100
Write an inequality for "she has no more than 12 dollars."
x ≤ 12
100
Write an equation for this linear relationship:
x y
4 8
5 12
6 16
y = 4x - 8
100
What is the slope of the line passing through the points (4, 9) and (3, 1)?
m = 8
200
Combine like terms:
4x - 3y + 2y + 5x - x - 7y
8x - 8y
200
Solve: x/5 = 9/14 (Mixed number answer only)
x = 3 3/14
200
Write the following inequality in interval notation:
-5 ≤ x < 6
[-5, 6)
200
If f(x) = 3x - 9, find f(-6)
-27
200
If y varies directly as x, and x = 9 when y = 4, write an equation for the relationship.
y = 9/4 x
300
Write an expression for "the product of three and the difference of a number and 4"
3(x - 4)
300
26% of what number is 48.88?
188
300
Solve: 4 - 3x < 22
x > -6
300
What are the next three terms of the sequence:
4.75, 2.15, -0.45, -3.05, -5.65, . . .
-8.25, -10.85, -13,45
300
Write an equation for the vertical line passing through the point (4, 1)
x = 4
400
No calculator:
4 1/2 - 5 2/3
-7/6 or -1 1/6
400
An item normally selling of $35.99 is on sale for $25. What is the percent of the markdown to the nearest percent?
31%
400
Solve: |x + 2| = 4
x = 2 or x = -6
400
Find the 81st term of the sequence:
7, 18, 29, 40, 51, . . .
887
400
Write an equation for the line:
y = -4/5 x + 3
500
Simplify:
3 - (2 + 4)2 - (6 - 7)3 + 3 · (-2)
-38
500
How much interest is earned on $5475 earning 1.2% annual interest for 10 years, to the nearest dollar?
$657
500
Solve: |x - 1| ≤ 2
-1 ≤ x ≤ 3
500
If g(x) = 2x3 - 4x2 + 5x + 2, find g(-1)
-9
500
Find the slope and the y-intercept of 3x - 7y = 84
m = 3/7
b = -12