1. Unit 3 Exam 1 Review Algebra 1
By Brit Caswell-Wind

2. Problem 1
Carlos caught 24 trout and bass while on a fishing trip. The total weight of his catch was 137 pounds. The average weight of a trout was 2.5 pounds, and the average weight of a bass was 8 pounds. How many trout and how many bass did he catch?

3. Describe the steps to use elimination.
Problem 2
Describe the steps to use elimination.

4. Describe the steps to use substitution.
Problem 3
Describe the steps to use substitution.

5. Problem 4
Plot the point that represents the solution to the following system: -5y + 4x = 49 7y + 2x = -23

6. Problem 5
What is the solution to the following system of equations?

7. Problem 6
Determine the equation of a line in slope-intercept form that passes through (-3, -5) and is perpendicular to y = -2x – 5.

8. Problem 7
Determine the equation of a line in slope-intercept form that passes through (-3, -5) and is parallel to y = -2x – 5.

9. Problem 8
If line a is parallel to line b, which of the following are true?
Their slopes are the same.
Their slopes are opposite reciprocals.
They never intersect.
They intersect once.
One has a positive slope and the other a negative slope.

10. Problem 9
If line a is perpendicular to line b, which of the following are true?
Their slopes are the same.
Their slopes are opposite reciprocals.
They never intersect.
They intersect once.
One has a positive slope and the other a negative slope.