Number Systems
Which of the following is an irrtational number: 0.5, 2/3, or pi?
pi
In the equation y=4x - 5, what is the slope?
4
Solve.
x+12=3
x = -9
What is the Pythagorean Theorem formula?
a2+b2=c2
Which transformation results in a larger or smaller figure?
Dilation
Between which two consecutive integers does the square root of 50 lie?
7 and 8
What is the slope of the line passing through (0,0) and (2, 10)?
5
Solve: 2x-5=11
x=8
A right triangle has legs of 6 and 8. What is the hypotenuse?
10
Reflect (2,3) across the x-axis. What are the new coordinates?
(2, -3)
Is the square root of 144 rational or irrational?
Rational
Does this set represent a function? {(1,2), (2,2), (3,5)
Yes
Solve: 3(x-2)=12
x=6
A cylinder has a volume of 30 cubic cm. What is the volume of a cone with the same based and height
10
If y increases as x increases in a scatterplot, what is the correlation?
Positive Correlation
Approximate the square root of 20 to the nearest tenth.
4.5
Identify the independent and dependent variables: Total cost (c) depends on the number of tickets (t). Which is the independent? Which is the dependent?
Cost is the dependent.
Tickets is independent.
Solve 4x+1 = 2x + 20
x = 5
What is the surface area of square pyramid that has a slant height of 8in. The side length of its base is 5in.
105 inches squared
If Point A on figure ABCD is located at (-1, 3) and it was translated 6 units down, what are the coordinates of the new image?
(-1, -3)
Name the subset(s) of the real number system that -5 belongs to.
Integer, Rational
What is the slope of a vertical line?
Undefined
Solve and graph!
-2p < 10
p > -5
Can side lengths of 5, 6, and 10 form a right triangle?
NO
In a scatteplot, what is the line called that best represents the data trend?
Line of Best Fit