Math Spiral Review: U2 Linear Equations and Inequalities

Front

A number decreased by 7 is equal to 4 times the same number increased by 2. What is the number?

Back

-3

Front

Which property justifies adding the same number to both sides of an equation?

Back

Addition property of equality

Front

A taxi charges a base fare of $3.50 plus $0.75 per mile. Which inequality represents a ride costing no more than $20?

Back

3.50 + 0.75m ≤ 20

Front

Which inequality represents 'a number plus 5 is at most 12'?

Back

x + 5 ≤ 12

Front

Jamal is 5 years older than twice Kira's age. If their combined age is 41, how old is Kira?

Back

13

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

What does the term 'inequality' mean in mathematics?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is less than, greater than, less than or equal to, or greater than or equal to the other.

Front

How do you solve a linear equation?

Back

Isolate the variable on one side of the equation using inverse operations.

Front

What is the solution to the equation 2x + 3 = 11?

Back

x = 4

Front

What does it mean for two lines to be parallel in terms of their slopes?

Back

Two lines are parallel if they have the same slope.