Math 7 Review Part 1

Front

Solve: -6x - 6 = -12

Back

x = 1

Front

Is the following graph proportional? (Answer: No)

Back

A graph is proportional if it passes through the origin and has a constant rate of change.

Front

The temperature one morning was -6 degrees. By noon the temperature dropped 7 degrees. What is the current temperature?

Back

Current temperature = -6 - 7 = -13 degrees.

Front

What is the Unit Rate (k) in the graph below? (Answer: 6)

Back

Unit Rate is the ratio of two measurements in which the second measurement is 1.

Front

Solve: 14 - (-10) = ?

Back

14 - (-10) = 14 + 10 = 24.

Front

What is a variable in mathematics?

Back

A symbol used to represent a number that can change.

Front

Define 'proportional relationship'.

Back

A relationship between two quantities where the ratio is constant.

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Front

What is the difference between mean and median?

Back

Mean is the average of a set of numbers; median is the middle value when numbers are arranged in order.

Front

Solve: 3x + 5 = 20

Back

x = 5.