Algebra 1 Semester 2 Final

Solve using substitution.

-4x-2y= -12

4x+8y= -24

• (5,6)

• (6,-6)

• (6,-2)

• (4,-3)

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

This system has _____ solutions

• no
• 1
• 2
• Infinitely many

What is the solution?
(Hint:  Both lines are graphed over each other)

• One Solution
• No solution
• Infinitely Many Solutions

2x - y = 0

4x - y = 0

• (1,2)

• (0,0)

• No Solutions

• Infinite Solutions

What is the solution to this system?
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Dominique charges an initial rate of $10 and an additional $6 an hour when she babysits. Which equation shows the relationship between the number of hours Dominique babysits h and the amount of money she makes m?

• m = h + 6 + 10

• m = 6h + 10

• m = 6 - h + 10

• h/m = 6 - 10

The graph shows the relationship between the amount in royalties that Eric receives and the number of his books that sell. Last month, Eric received a royalty check for $360. How many of his books sold last month?

• 200

• 300

• 400

• Cannot be determined.

Name the x- and y-intercepts for the equation:

2x + y = 6

• (0, 3) and (6, 0)

• (0, -3) and (-6, 0)

• (3, 0) and (0, 6)

• (-3, 0) and (0, -6)

Write 3x-2y=2 in slope intercept form.

• y=3/2x-1

• y=3/2x+1

• y=-3/2x-1

• y=-3/2x+1