Precalculus Review

Multiple Choice

Which of these is a solution to the equation
y = 5x?

• (1,5)

• (1, -5)

Multiple Choice

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

• (2,-3)
• (0, 7)

Multiple Choice

Which equation represents the following graph?

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

Multiple Choice

Give the equation for the graph

• y = 5x - 3
• y = 4x + 2
• y =-2x + 5
• y = - 2x + 4

Multiple Choice

Graph. y = -4

• a
• b
• c
• d

Multiple Choice

Graph. x = 1

• a
• b
• c
• d

Multiple Choice

Find the slope of the line that passes through:
(-4, 7) and (-6, -4)

• 2/11
• 13/2
• 3/10
• 11/2

Multiple Choice

Find the slope of the line that passes through:
(-3, -4) and (7, 6)

• 0
• Undefined
• -1
• 1

Multiple Choice

Write the equation in point-slope form of the line that passes through the given point and has the given slope.
(4, -7); m = -1/4

• y + 7 = -1/4(x - 4)
• y - 4 = -1/4(x + 7)
• y + 7 = 4(x - 4)
• y - 7 = -1/4(x - 4)

Multiple Choice

Write the equation in point-slope form of the line that passes through the given point and has the given slope:
 (-2, -1); m= -3

• y + 1 = -3(x - 2)
• y + 1 = -3(x + 2)
• y - 1 = 3(x - 1)
• y + 2 = -3(x + 1)

Multiple Choice

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

Multiple Choice

Which of the following lines is PARALLEL to the graph of 5x + 2y = 8?

• 2x + 5y = 8

• 5x - 2y = 6

• -10x - 4y = 7

• -10x + 4y = 9

Multiple Choice

Which of the following represents the equation of the line passing through (-4, 5) PERPENDICULAR to the line y = -1/2x + 5/2?

• y = 2x + 13

• y = 2x + 5

• y = -1/2x + 3

• y = -1/4x + 11/2

Multiple Choice

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

• (-2,-3)
• (0,-1)
• (3,4)
• (4,3)

Multiple Choice

Solve.

• -1/2

• 2

• 7

• no solution

Multiple Choice

• 4

• -4

• 2

• -2

Multiple Choice

Which point below is a solution to the system:

2x + y = 5

y = x + 2

• (1,3)

• (3,1)

• (3,-1)

• (-3,1)

Multiple Choice

Is the point (1,4) a solution the system:

y = -x + 5

y = x² - 6x + 9

• Yes

• No

Multiple Choice

Is the point (-4,1) a solution the system:

y = x + 3

y = x² + 3x - 5

• Yes

• No

Multiple Choice

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)

Multiple Select

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