Chapter 1
Simplify: 42 - m when m = 13
19
True or False? Whole numbers are always rational numbers.
True
Solve: 125 = -5x
x = -25
What is the coordinate of a point that is located 5 units down and 2 units to the right?
(2,-5)
Write the equation in slope intercept form of a line with a slope of 4 and an intercept of -7
y=4x-7
Write as an expression: 8 times the quantity of a number plus 2
8(n+2)
Simplify |-26|-8
18
4(x+3)=16; solve for x
x=1
Draw a coordinate plane and label each quadrant.
Answers will vary
Write the equation of a line in point slope form of a line that goes through the point (-7,2) with a slope of 3
y-2=3(x+7)
Write as a sentence: 2-(n+7)
The difference between 2 and the quantity of a number plus 7
(x+y)+z = x+(y+z) Name this property, BE SPECIFIC!
Associative Property of Addition
8 is what percent of 75? Round to the nearest tenth
10.7%
What is the slope of a line that is parallel to the line y=3x+2?
3
What is the slope of a line that is perpendicular to the line y=3x+2?
-1/3
Identify the dependent variable: the cost of a pizza or the size of a pizza.
The cost of the pizza
In words, describe how you find the multiplicative identity
Take the reciprocal of the number you are multiplying by.
(x/8)=(6/4) Solve for x
x=12
What is f(x)=3x+2 when f(9)?
29
Define a function
Each input had exactly one output.
Describe in words the identity property of addition AND multiplication
Any number (x) plus 0 is x and any number (x) times 1 is x
u = 2-2a; solve for a
a=(u-2)/(-2)
Graph the line x=-5
Answers will vary
Write and graph the line that goes through the points (2,-2) and (-2,4)
Answers will vary: Example includes y=-3/2x+1