math 1111 review for test #1 sections 1.2 – 2.1. function or not a function? {(4, -5), (3, 4),...
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Math 1111 Review for Test #1
Sections 1.2 – 2.1
Function or Not a Function?{(4, -5), (3, 4), (-2, 5)}
•A. Function
•B. Not a Function
Function or Not a Function?{(4, 7), (-3, 7), (2, 7)}
•A. Function
•B. Not a Function
Function or Not a Function?{(5, 7), (4, -1), (5, -1)}
•A. Function
•B. Not a Function
Is 5x + 6y = -9 the equation of a function?
•A. Yes, it is a function.
•B. No, it is not a function.
Is x = 4 the equation of a function?
•A. Yes, it is a function.
•B. No, it is not a function.
What is the slope of the line 5x – 3y = 8?
• A. -5/3
• B. 5/3
• C. 3/5
• D. -3/5
What is the slope of the line y = 6?
• A. Undefined
• B. 6
• C. 3/4
• D. 0
What is the slope of the line x = -4?
• A. -4
• B. 0
• C. Undefined
• D. 6
What is the slope of the line passing through (-3, 7) and (-6, -2)?
• A. 3
• B. -3
• C. 1/3
• D. -1/3
Find the slope-intercept equation of the line with slope -3 and passing through (4, -2).
• A. Y = -3x - 2
• B. Y = -3x + 14
• C. Y = -3x - 10
• D. Y = -3x + 10
What is the equation of the horizontal line passing through (6, -4)?
•A. X = 6
•B. Y = -4
•C. Impossible to determine.
Is f(x) = -4x + 2 increasing, decreasing or constant?
•A. Increasing
•B. Decreasing
•C. Constant
Refer to the graph and find f(1)
• A. 2
• B. 0
• C. 1
• D. -1
-4 -3 -2 -1 1 2 3 4
-4
-3
-2
-1
1
2
3
4
x
y
What is the domain of the function whose graph is shown below?
• A. (-1, 2)
• B. [-1, 2)
• C. [1, 4)
• D. (1, 4)
-4 -3 -2 -1 1 2 3 4
-4
-3
-2
-1
1
2
3
4
x
y
What is the range of the function whose graph is shown below?
• A. (-1, 2)
• B. [-1, 2)
• C. [1, 4)
• D. (1, 4]
-4 -3 -2 -1 1 2 3 4
-4
-3
-2
-1
1
2
3
4
x
y
Find f(-3) if f(x) = -x2 + 5
• A. 14
• B. -4
• C. 2
• D. 8
What is the zero for f(x) = -8x + 1?
• A. 1
• B. -8
• C. -1/8
• D. 1/8
Solve for x: 7x + 2 = -3x - 8
• A. X = -1
• B. No Solution
• C. -5/2
• D. -3/2
Solve for x: 2(9x + 2) – 4 = 3(6x – 1)
• A. X = -1
• B. No Solution
• C. -5/2
• D. -3/2
Solve for x: -6(2x + 3) – 4 = -8 – 2(x – 5) – 3(x + 1)
• A. X = 3
• B. X = -3
• C. X = 69
• D. None of the above
Find the function:
• You have 400 feet of fencing to enclose a rectangular lot and divide it in two by another fence that is parallel to one side of the lot. Express the area of the rectangular lot, A(x), as a function of the length of the fence that divides the rectangular lot, x. Leave in factored form.
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