Real Numbers
What number multiplied by itself equals 49?
7
What is the solution to a system of equations on a graph?
The point where the graphs intersect
What is the slope in y = 2x + 3?
2
Find the mean of 4, 6, and 8.
6
What is the distance around a circle called?
Circumference
What do we call a number that cannot be written as a fraction of two integers?
An irrational number
Solve:
x + y = 10
x = 6
(6, 4)
What is the y-intercept in y = 5x − 4?
−4
What is the difference between the largest and smallest values in a data set called?
The range
What is a solid with two congruent parallel bases called?
A prism
What is the square root of 144?
12
What does the solution of a system of equations tell us?
Where the two graphs intersect.
What do we call a function where y changes by a constant amount when x increases?
A linear function
What is the middle value in an ordered data set called?
The median
What is the formula for the area of a circle?
A = πr²
What is the cube root of 125?
5
Solve:
x + y = 7
x − y = 1
(4, 3)
Find y when x = 4 in y = 3x + 2.
14
What graph shows the minimum, quartiles, median, and maximum?
A boxplot
What fraction appears in the volume formula for a pyramid?
1/3
What interval contains all numbers between 2 and 8, including both endpoints?
[2, 8]
How many solutions does a system have if the lines never intersect?
Zero
What is the graph of y = x² called?
A parabola
What measure describes how spread out data are around the mean?
Standard deviation
What do we call the part of a circle enclosed by two radii and an arc?
A sector