Algebra 1 Term 2 Final MC

Given the following system of equations, find the value of y. 

4x + 3y = 17

-4x + 2y = -2

• y = 3

• y = 2

• y = 1

• y = 0

Which ordered pair is a solution of the linear system?

y = -9 - 3x

y = 2x + 16

• (-8, 5) 

• (-2, 4)

• (-5, 6)

• (-2, -1)

• 
• 
• 
• 

• (2, -5)

• (2, -1)

• (0, 3)

• (6, 3)

The enrollment at Ridgeville High School has been increasing by 20 students per year.   Currently Ridgeville has 200 students attending.  Toronto High School currently has 400 students, but its enrollment is decreasing at an average of 30 students per year.  Use a system of equations to determine how many years it will take for the two schools to have the same enrollment, and what that enrollment will be if these trends continue.

• Never

• 4 years, 280 students

• 6 years, 320 Students

• 6 years, 220 students

Multiply (2x - 3)(x + 5)

Mr. Grannen was launching a rocket off of his 8.2-foot tall porch. The graph shown models the path of the rocket over time (in seconds). Interpret the vertex of the parabola.

• The rocket launched off the porch from 8.2 feet.

• After 2 seconds the rocket was 12 feet off the ground.

• The rocket landed in 5.5 seconds.

• After 4 seconds the rocket was 8.2 feet off the ground.

Choose the best description of the parabola represented by the following equation:

y = - (x + 2)(2x - 3)

• The parabola is concave down, has a y-intercept at (0, 6), and has x-intercepts at

       (2, 0) and (-1.5, 0).

• The parabola is concave up, has a y-intercept at (0, 6), and has x-intercepts at (-2, 0) and (1.5, 0).

• The parabola is concave down, has a y-intercept at (0, 6), and has x-intercepts at

       (-2, 0) and (1.5, 0).