MATH – 1100 Instructor S. Babasyan

Elementary Algebra

Practice Test 2 ch 3 and 4

Name: ____________________________ Show your work. No work no credit1. Find x and y intercepts, then graph the following equations. (15)

a) 5x + 2y = 10

b) 2x = –8

c) y = 2x

2. Find the slope of the line passing through the given points. (5)

P(– 2, – 2) and Q(– 12, – 8)

3. The phone bill per month has a fixed fee of $69 plus $ 0.75 for each min. Write a linear equation that gives the total cost of a month. (5)

4. Find the slope of the line. (5)

5. Determine whether the lines through each pair of points are parallel, perpendicular, or neither. (10)

6. Find the slope of a line perpendicular to the line passing through the given two points. (10)7. Find the slope and the y- intercept of the line with the given equation. (5)8. Write an equation of the line with the given slope and y – intercept. (5)9. Find the slope and y- intercept of the graph of each equation and graph it. (10)

10. For each pair of equations, determine whether their graphs are parallel, perpendicular, or neither. (10) 11. Use the point – slope form to find an equation of the line that passes through the two given…