2 multiple choice questions math homework help

i have 20 question multiple choice in precalculus

Question 1 (4 points)

Use the slope and y-intercept to graph the linear function.G(x) = 3x

Question 1 options:

A)

B)

C)

D)

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Question 2 (4 points)

Solve the inequality.x2 + 6x ≤ 0

Question 2 options:

A)
[-6, 0]

B)
(-∞, 0] or [6, ∞)

C)
(-∞, -6] or [0, ∞)

D)
[0, 6]

Save
Question 3 (4 points)

Use the figure to solve the inequality.f(x) < 0

Question 3 options:

A)
{x|x ≤ -5 or x ≥ 3}; (-∞, -5] or [3, ∞)

B)
{x|-5 < x < 3}; (-5, 3)

C)
{x|-5 ≤ x ≤ 3}; [-5, 3]

D)
{x|x < -5 or x > 3}; (-∞, -5) or (3, ∞)

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Question 4 (4 points)

Use the slope and y-intercept to graph the linear function.p(x) = -x – 3

Question 4 options:

A)

B)

C)

D)

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Question 5 (4 points)

Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = x2 – 8

Question 5 options:

A)
maximum; -8

B)
minimum; -8

C)
minimum; 0

D)
maximum; 0

Save
Question 6 (4 points)

Determine the slope and y-intercept of the function.p(x) = -x + 4

Question 6 options:

A)
m = -1; b = – 4

B)
m = 0; b = 4

C)
m =1; b = – 4

D)
m = -1; b =4

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Question 7 (4 points)

Use the slope and y-intercept to graph the linear function.F(x) = 6

Question 7 options:

A)

B)

C)

D)

Save
Question 8 (4 points)

Solve the inequality.x2 – 2x – 15 ≤ 0

Question 8 options:

A)
(-∞, -3] or [5, ∞)

B)
[-3, 5]

C)
[5, ∞)

D)
(-∞, -3]

Save
Question 9 (4 points)

Solve the problem.The manufacturer of a CD player has found that the revenue R (in dollars) is when the unit price is p dollars. If the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?

Question 9 options:

A)
$194,045

B)
$388,090

C)
$1,552,360

D)
$776,180

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Question 10 (4 points)

Solve the inequality.x2 + 3x – 4 > 0

Question 10 options:

A)
(-∞, -4)

B)
(-4, 1)

C)
(1, ∞)

D)
(-∞, -4) or (1, ∞)

Save
Question 11 (4 points)

Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = -x2 + 4x

Question 11 options:

A)
vertex (2, -4)intercept (0, -8)

B)
vertex (-2, 4)intercepts (0, 0), (- 4, 0)

C)
vertex (2, 4)intercepts (0, 0), (4, 0)

D)
vertex (-2, -4)intercept (0, -8)

Save
Question 12 (4 points)

Solve the problem.The owner of a video store has determined that the cost C, in dollars, of operating the store is approximately given by where x is the number of videos rented daily. Find the lowest cost to the nearest dollar.

Question 12 options:

A)
$741

B)
$559

C)
$438

D)
$620

Save
Question 13 (4 points)

Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -x2 – 2x + 1

Question 13 options:

A)
minimum; – 1

B)
minimum; 2

C)
maximum; 2

D)
maximum; – 1

Save
Question 14 (4 points)

Determine the quadratic function whose graph is given.||

Question 14 options:

A)
f(x) = -x2 – 4x – 5

B)
f(x) = -x2 + 4x + 5

C)
f(x) = x2 – 8x + 5

D)
f(x) = x2 + 4x + 5

Save
Question 15 (4 points)

Determine the slope and y-intercept of the function.G(x) = -6x

Question 15 options:

A)
m = 0; b = -6

B)
m = -6; b = 0

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