Unit 4 Expressions review

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF is the largest number that divides two or more numbers without leaving a remainder.

Front

How do you factor an expression using the GCF?

Back

To factor an expression using the GCF, identify the largest factor common to all terms in the expression and factor it out.

Front

Factor the expression 30b - 6c using the GCF.

Back

6(5b - c)

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

Write an expression for the total cost of n pounds of nails at $1.29/lb, w pounds of washers at $0.79/lb, and b pounds of bolts at $2.39/lb.

Back

1.29n + 0.79w + 2.39b

Front

What is the value of the expression 30b - 6c when b = -4 and c = 1?

Back

-126

Front

How do you evaluate an algebraic expression?

Back

To evaluate an algebraic expression, substitute the values of the variables into the expression and perform the operations.

Front

Calculate the total cost of buying 2 pounds of nails, 4 pounds of washers, and 3 pounds of bolts.

Back

$12.91

Front

What is the formula to find the height of water after draining at a constant rate?

Back

Height after time = Initial height - (drain rate × time)