Mathematics, 11.03.2021 17:30 cxttiemsp021
Question 1 (6 points)
Select the interval(s) where the function f(x)=2x3β3x2β12x+20 is only increasing.
Question 1 options:
ββ < x < β
0 < x < β
β2.5 < x <β
β1 < x < 2
2 < x < β
ββ < x < β1
Question 2 (6 points)
Select the interval(s) where the function f(x)=x3+4x2+1 is only increasing.
Question 2 options:
β2.7 < x< 1.8
0 < x < 4
ββ
ββ< x < 0
0 < x < β
1.8 < x < β
Question 3 (3 points)
Identify the interval where the graph is only decreasing.
Question 3 options:
(β2, 1)
(β3, 2)
(β3, β1)
(β4, 2)
Question 4 (3 points)
What is the apparent solution set to the system of equations:
Question 4 options:
{(1.5, 2.5), (3, 2)}
{(β3, 2), (1.5, β3)}
{(β2, β3), (2.5, β1.5)}
{(β2.5, 1.5), (2, β3)}
Question 5 (3 points)
Saved
What are the apparent solutions to the system of equations:
Question 5 options:
{(β4, 3), (β1, 0)}
{(β5, 0), (β313, 0), (β1, 0)}
{(β3, 4), (β2, β2)}
{(0, β5), (0, 5)}
Question 6 (3 points)
Saved
Given f(x)=3xβ4 and g(x)=x2β3, find (g β f)(x).
Question 6 options:
9x2+13
3x2β13
9x2β24x+19
9x2β24x+13
Question 7 (3 points)
What are the x-coordinates to the solutions of the system of equations: {x+y+10=0x2+yβ2=0
Question 7 options:
x = -3, -7
x = 4, 14
x = -3, 4
x = -4, 3
Question 8 (6 points)
What are the y-coordinates for the solution to the system of equations: {yβx2+9xβ6=0yβx+3=0
Make sure to select all the correct answers.
Question 8 options:
9
1
8
6
-3
-9
-2
2
Question 9 (3 points)
Question 9 options:
Given f(x)=2x and g(x)=x2+3, find (g β f)(β3).
Type final answer only in the blank.
Question 10 (3 points)
Question 10 options:
Given f(x)=x2+3x and g(x)=2x2, find (f β g)(β1).
Type answer only in the box.
Answers: 3
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Question 1 (6 points)
Select the interval(s) where the function f(x)=2x3β3x2β12x+20 is only increas...
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