Illustrative Math Algebra 1 Unit 2 Lessons 1 - 9

Front

What is the first step to isolate the variable in the equation 5d - 1 = 2d - 7?

Back

Subtract 2d from both sides of the equation.

Front

Solve for h: 5h + 2 - h = 22

Back

h = 5.

Front

Write the equation for the total cost (y) of a holiday meal for x people, given the cost per person is $12.50 and a delivery fee of $30.

Back

y = 30 + 12.50x.

Front

What equation represents Eddie's Electric charges of $90 per hour plus a $50 traveling fee?

Back

y = 90x + 50.

Front

If Sandy had $173 and spent some on 7 books, leaving her with $12, how much did each book cost?

Back

Each book cost $23.

Front

What does it mean to isolate a variable in an equation?

Back

To manipulate the equation so that the variable is on one side and all other terms are on the other side.

Front

What is the distributive property in algebra?

Back

a(b + c) = ab + ac.

Front

How do you combine like terms in an expression?

Back

Add or subtract the coefficients of the terms that have the same variable.

Front

What is the purpose of using parentheses in algebraic expressions?

Back

To indicate which operations should be performed first.

Front

What is a linear equation?

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.