Lesson 3: Practice Problems
Problem 1
Here is an equation that represents a function:
Select all the different equations that describe the same function:
Problem 2 From Unit 4 Lesson 13
Graph a system of linear equations with no solutions.
Write an equation for each line you graph.
Problem 3
Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $10 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let
Write an equation relating the two variables.
Rearrange the equation so
is the independent variable. Rearrange the equation so
is the independent variable.
Problem 4 From Unit 4 Lesson 6
Solve each equation and check your answer.