Pre-Algebra
Will the answer to the following problem be "positive" or "negative"? (-5)(-5)(-5)(-5)(-5)
negative
Simplify using the distributive property: -2(y-5)
-2y + 10
Solve when x=6
3x + 8x + 7x = ?
108
Find the slope of the line passing through the points (-6, 9) and (-7, 13)
-4
Which axis on a graph usually represent the independent variable?
x
What does the E stand for in PEMDAS?
Exponents
Evaluate the following expression for n = 6
2(n-4)+5
9
Solve: 15x - 6 = 7x + 26
x = 4
Given the following information, write an equation in SLOPE - INTERCEPT FORM. slope: -2 y - intercept: 10
y = -2x + 10
What is the vertical line test and what does it tell you?
To do the VLT you draw vertical lines on your graph. If a vertical line intersects the graph more than once, the graph is not a function. (It tells you whether a graph represents a function or not)
Reduce the fraction to simplest form: 14/21
2/3
Simplify: -6(-2t + 8) – 5(8 - 18t)
102t - 88
6(x + 7) - 8 = 88
x = 9
Given the following information, write an equation in SLOPE-INTERCEPT FORM. Slope: -5 Point: (0, 8)
y = -5x + 8
In a function, what set of values does f(x) represent?
The y values
Markers can be purchased in packages of 8. If Ms. Lynch has 35 students, how many packages of markers does she need to purchase so every student will have one marker?
5
Evaluate the expression: 7 + a(b) for a = 8 and b = -2
-9
Daniel, Eric, and Phil went out to lunch. They split the bill evenly. They each paid 10 dollars. How much was their total bill?
$30
Find the slope of the line passing through the points (1, -4) and (-3, 16)
m = -5
f(x) = 3x + 4(x - 2)
What is f(5) = ?
f(5) = 27
Evaluate: 5/8 - 2/3
-1/24
Simplify the expression
3x + 4(2 - 5x) - 4
-17x + 4
Steven completed 4 homework assignments in 5 class periods. How long will it take him to complete 10 assignments?
12.5 class periods
Change the equation to slope-intercept form y = 2(x-4) + 7
y = 2x - 1
f(x)= 3x + 4(x - 2) find the value of x when f(x) = -22
x = -2