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of 22 Points:1 / 1 (Hình ảnh) The quadratic function graphed above has an equation of f(x) = ax 2  +bx+c. Which of the following must be true?

Cập nhật ngày: 01-08-2024


Chia sẻ bởi: Nguyễn Đăng An


of 22
Points:1 / 1

The quadratic function graphed above has an
equation of f(x) = ax2 +bx+c. Which of the
following must be true?

A

a > 0

B

b > 0

C

b < 0

D

c < 0
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of 22
Points:0 / 1

In the figure above, a cylinder is inscribed in a
sphere with a radius of 10 inches. If the circular
base of the cylinder has a radius of 6 inches,
what is the length of the height of the cylinder?
 

C

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D

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of 22
Points:1 / 1

In the figure above, P is the midpoint of AB
and Q is the midpoint of BC . If the area of
trapezoid APQC is 20, what is the area of
△ABC?
 

C

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D

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of 22
Points:1 / 1

In the figure above, the sum of the numbers in
row R is the same as the sum of the numbers in
column C. What is the sum of the numbers in
row R?

A

15

B

14

C

13

D

12
Which of the following functions best represents the graph shown above?

A

y = x2 - 8x + I4

B

y = x2 + 8x + 14

C

y=-x2 + 8x + I4

D

y = ∣x2 - 8x + 14∣
of 22
Points:1 / 1

In the figure above, the areas of the two shaded
triangles are equal. If ∠POP' = 90° , which of
the following could be the coordinates of point
P'?

A

(2, -5)

B

(-2, 5)

C

(-5,-2)

D

(-5,2)