MAC1105 Tallahassee Community Functions & Leading Coefficients Exam

Solve a few college algebra assignments, primarily based on functions, vertex, leading coefficients, intervals

MAC 1105
Exam 2 – Form 2 – Page 5 of 7
4. (4 points) Let f(x) = 4×4 -73° -233 +3.
(a) (2 points) What is the degree of f?
(b) (2 points) What is the leading coefficient of f?
5. (6 points) Use the following graph of y = f(x) to answer the questions,
(a) (2 points) What intervals of z is f(x) increasing?
(b) (2 points) What intervals of r is f(x) decreasing?
(c) (1 point) The local maximum at x =
(d) (1 point) The local minimum at =
MAC 1105
Exam 2 – Form 2 – Page 3 of 7
7. (4 points) Select the vertex of the parabola given by g(x) = 4.12 – 24x + 11.
a. (-3, 119)
b. (3,119)
c. (3,-25)
d. (-3,-25)
8. (4 points) A parabola has a vertex of (4.-6). Which of the following is the axis (line) of
symmetry?
a. Y = -6
b. y= 4
c. =4
d. = -6
Non-Multiple Choice Part: The following questions are not multiple choice. You will
not receive credit for answers with no work if work is required.
3r – 5
1. (4 points) Circle all answer choices for the vertical asymptotes of f(x) =
There
(x + 2)(x – 1)
may be more than one answer.
b. x=1
c. = -2
d. There are no vertical asymptotes.
MAC 1105
Exam 2 – Form 2 – Page 4 of 7
2. (3 points) Use the following piecewise function to evaluate.
(22 +7 if r < 2 f(x) = 7 if 2