8th Grade Math

Front

What is the definition of slope in mathematics?

Back

The slope is a measure of the steepness or incline of a line, calculated as the rise over run between two points on the line.

Tags

CCSS.8.EE.B.5

Front

What does the inequality x < 3 represent?

Back

It represents all values of x that are less than 3.

Tags

CCSS.6.EE.B.8

Front

Estimate the amount of gas used for a 225-mile drive if the car consumes 5 miles per gallon.

Back

45 gallons.

Tags

CCSS.6.RP.A.3B

Front

What is a trend line?

Back

A trend line is a line that is drawn on a graph to show the general direction of a set of data points.

Tags

CCSS.8.SP.A.2

Front

How do you find 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

Front

What is the purpose of a graph in mathematics?

Back

Graphs visually represent data and relationships between variables, making it easier to analyze and interpret information.

Front

What does it mean if a line on a graph is horizontal?

Back

A horizontal line indicates that the y-value remains constant regardless of the x-value, meaning the slope is 0.

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 difference between independent and dependent variables?

Back

Independent variables are manipulated or changed, while dependent variables are measured or observed in response.

Tags

CCSS.HSS.ID.C.9

Front

What is a reasonable estimate for the amount of gas used for 225 miles driven if the options are 10, 11.25, 20, 20.5?

Back

11.25 gallons.