semester 1 review pre-algebra ( equations, rational numbers)

Front

Solve the equation: 4x - 5x + 9 = 5x - 9

Back

x = 3

Front

Write an equation for Connor's lemonade stand where he has sold 15 cups and sells 5 more per hour.

Back

y = 5x + 15

Front

What is 5 cubed? (5^3)

Back

125

Front

Bob's Plumbing charges $15 per hour plus a service fee of $40. Write the equation that models this situation.

Back

y = 15x + 40

Front

What is 2 cubed? (2^3)

Back

8

Front

Define a rational number.

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is the formula for solving a linear equation in one variable?

Back

Isolate the variable on one side of the equation.

Front

What does it mean to cube a number?

Back

Cubing a number means raising it to the power of three, which is multiplying the number by itself three times.

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

How do you find the y-intercept of a linear equation?

Back

Set x = 0 in the equation and solve for y.