Summer practice #3

Which equation represents the following graph?

• y = 3x + 2
• y = -2x + 3
• y = 2x + 3
• y = -3x + 2

Which of these is a solution to the equation
y = 2x-7?

• (2,-3)
• (0, 7)

Graph. y = -4

• a
• b
• c
• d

Graph. x = 1

• a
• b
• c
• d

Which of the following lines is PARALLEL to the graph of y = -6x + 3 and goes through the point (-1,4)?

• y=1/6x +25/6

• y = 1/6x + 4

• y = -6x - 2

• y = -6x + 4

Solve for x and y
2x − 3y = −1
 y = x − 1

• (-2,-3)
• (0,-1)
• (3,4)
• (4,3)

Which point below is a solution to the system:

2x + y = 5

y = x + 2

• (1,3)

• (3,1)

• (3,-1)

• (-3,1)

What is the factored form of: x² - 9x + 20

• (x-5)(x-4)

• (x+5)(x-4)

• (x-4)(x+5)

• (x+4)(x+5)

What does the solution to a system of equations represent?

(in other words if you have two lines, a line and a quadratic, or a quadratic and a cubic and you find a solution(s), what does that solution represent?)

• the solution(s) represents a point of intersection

• the solution(s) makes one equation true

• the solution(s) make both equations true

• None of the above

• 4

• 3

• 2

• 1

• 5