Cumulative Review A

Front

How do you plot a point on a coordinate plane?

Back

Start at the origin (0,0), move right or left for the x-coordinate, then move up or down for the y-coordinate.

Front

What is the ratio of boys to girls in a class with 30 boys and 12 girls?

Back

The ratio of boys to girls is 5:2.

Front

What is an ordered pair in a coordinate system?

Back

An ordered pair is a pair of numbers (x, y) that represent a point on a coordinate plane.

Front

How do you find the unit rate?

Back

Divide the total amount by the number of units to find the cost per unit.

Front

If you spend $40 on 5 pounds of concrete, what is the cost per pound?

Back

The cost per pound is $8.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

If the ratio of rice to water is 3:2, how much water is needed for 12 cups of rice?

Back

You need 8 cups of water.

Front

What does the equation y = 6x represent?

Back

It represents a linear relationship where y is 6 times the value of x.

Front

How do you determine if an ordered pair is a solution to an equation?

Back

Substitute the x and y values into the equation and check if the equation holds true.

Front

What is the origin in a coordinate plane?

Back

The origin is the point (0,0) where the x-axis and y-axis intersect.