8th Grade Math Review

Front

What is the definition of slope in mathematics?

Back

Slope is defined as the ratio of the rise (vertical change) to the run (horizontal change) between two points on a line.

Tags

CCSS.8.EE.B.5

Front

How do you find the missing side length of a right triangle using the Pythagorean theorem?

Back

To find the missing side length (x) of a right triangle, use the formula a² + b² = c², where c is the hypotenuse.

Tags

CCSS.8.G.B.7

Front

Which expression represents a negative number? 5 − (-6), -12 ÷ -6, (-3)³, (-2)×(-4)

Back

-12 ÷ -6 represents a negative number.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Front

What is the measurement of x if x + 5 = 25?

Back

x = 20.

Tags

CCSS.4.MD.A.2

Front

What can be said about the slopes of parallel lines?

Back

The slopes of parallel lines are the same.

Tags

CCSS.8.EE.B.5

Front

What is the formula for calculating the area of a triangle?

Back

Area = 1/2 × base × height.

Tags

CCSS.6.G.A.1

Front

What is the definition of a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

How do you calculate the mean of a set of numbers?

Back

Mean is calculated by adding all the numbers together and dividing by the count of numbers.

Tags

CCSS.6.SP.B.5C

Front

What is the difference between a variable and a constant in algebra?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value.

Tags

CCSS.6.EE.A.2B

Front

What is the formula for the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5