basic math 101 only 11 questions
Math100f19za Assignment TCAFunctionArithmeticTranslations due 11/01/2019 at 11:59pm CDT
1. (1 point) Let f (x) = 3x+4 and g(x) = 2x2 +3x. ( f +g)(7) =
Answer(s) submitted: •
(incorrect)
2. (1 point) Let the function f be defined by
f (x) = 6x+5.
Then f (4)+ f (9) = and f (4)− f (9) = Answer(s) submitted: • •
(incorrect)
3. (1 point) Let f (x) = 2x2−6x+5 and g(x) = x2 +4. Find f +g, f −g, f ·g, and f
g . Simplify your answers.
1. f +g = 2. f −g = 3. f ·g = 4.
f g =
Answer(s) submitted: • • • •
(incorrect)
4. (1 point)
y = f (x) y = g(x)
Use the graphs of y = f (x) and y = g(x) above to the find the function value. Write undefined if the function value is undefined.
(a) ( f +g)(0) = (b) ( f −g)(4) =
Answer(s) submitted: •
•
(incorrect)
5. (1 point)
x f (x) g(x) 0 −1 5 1 2 2 2 4 −5 3 1 −1 4 5 5
Use the table defining f and g to solve: NOTE: Write Does not exist if the value does not exist.
a) ( f −g)(1) = b) ( f +g)(1)− (g− f )(2) =
c) (
f g
) (1) =
Answer(s) submitted:
• • •
(incorrect)
6. (1 point) For f (t) = t−3 and g(t) = t−5, find:
a) (
f g
) (t) =
b) (
f g
) (−3) =
Answer(s) submitted:
• •
(incorrect)
7. (1 point) For f (x) = 3x+1 and g(x) = 6x−4, find: a) ( f −g)(x) = b) ( f −g)(−6) = Answer(s) submitted:
• •
(incorrect)
1
8. (1 point) Match the function with one of the graphs below.
A B
C D
1. f (x) = 3x2
2. f (x) = x2−2 3. f (x) =−3x2 4. f (x) = x2 +1
Note: You can click on the graphs to enlarge the images.
Answer(s) submitted: • • • •
(incorrect)
9. (1 point) Write an equation that represents the function graphed in blue by using transformations from y = |x|, which is graphed in green.
Equation: Answer(s) submitted:
•
(incorrect)
11. (1 point) The graph of f (x) is shown (black) below. Write the correct letter corresponding to each transformation listed.
f(x) A B
C D E
f (2x): 2 f (x): f (x+2): f (x)+2: f (x)−2: Answer(s) submitted:
• • • • •
(incorrect) 2
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