Quiz about EOC STAAR: NO Calculator Required

Question 1

The graph of a quadratic function is shown, Which values best represent the zeros of the function Select TWO correct answers.

Accepted Answer

x = -1

Accepted Answer

x = 3

Answer

x = 1

Answer

x = -4

Answer

x = 0

Question 2

A graph of a linear function is shown on the grid. What are the x-intercept and y-intercept of the line?

Accepted Answer

x-intercept: (-2, 0)

y-intercept: (0, 8)

Answer

x-intercept: (8, 0)

y-intercept: (0, -2)

Answer

x-intercept: (-2, 0)

y-intercept: (0, 4)

Answer

x-intercept: (4, 0)

y-intercept: (0, 8)

Question 3

The domain and range of part of a linear function r are given.

x > 5

y < 2

Which graph could represent this part of a linear function r ?

Accepted Answer

Question 4

A customer purchases an electronic device for $650. Each year the value of the electric device decreases by 30%.

Which Statement is true about the graph that represents the relationship between the value of the device in dollars, y, and the number of years, x, since the device was purchased?

Accepted Answer

The y-intercept of the graph is 650.

Answer

The y-intercept of the graph is 455.

Answer

The graph has a vertical asymptote at x = 0.

Answer

The graph has a horizontal asymptote at y = 30.

Question 5

This year the number of students who participated in sports was 317. Each year the number of students who participate in sports increased by 4%,

Which function can be used to model the number of students participating in sports after x years?

Accepted Answer

f(x) = 317(1.04)^x

Answer

f(x) = 317(4)^x

Answer

f(x) = 4x + 317

Answer

f(x) = 1.04x + 317

Question 6

Printer ink costs $18.99 per cartridge. The company that sells the ink cartridges charges a flat rate shipping fee of $7.95, no matter the number of cartridges purchased in a single order.

Which linear function models the total cost, t, for a single order of c cartridges?

Accepted Answer

t = 18.99c + 7.95

Answer

c = 26.94t

Answer

c = 18.99t + 7.95

Answer

t = 26.94c

Question 7

The table represents some points on the graph of a quadratic function g.

What is the range of g ?

Accepted Answer

All real numbers less than or equal to 19/4

Answer

All real numbers less than or equal to 3/2

Answer

All real numbers greater than or equal to 3/2

Answer

All real numbers greater than or equal to 19/4

Question 8

The function w(t) = 270(1.029)^t can be used to estimate the number of whales in North Atlantic Ocean at the end of t years. what does 1.029 represent in the function?

Accepted Answer

The growth factor of the number of whales in the North Atlantic Ocean

Answer

The initial number of whales in the North Atlantic Ocean

Answer

The decay factor of the number of whales in the North Atlantic Ocean

Answer

The number of whales in the North Atlantic Ocean at the end of the first year

Question 9

The graph of a function f is shown.

What is the zero of f ?

Accepted Answer

2

Answer

-3

Answer

3

Answer

-6

Question 10

A line is graphed on a coordinate grid.

Which statement about the line is true?

Accepted Answer

The equation of the line is x = -4, and the slope is undefined.

Answer

The equation of the line is y = -4, and the slope is equal to -4.

Answer

The equation of the line is x = -4, and the slope is equal to -4.

Answer

The equation of the line is y = -4, and the slope is undefined.

Question 11

The graph of a quadratic function is shown on the grid.

Which statement appears to be true?

Accepted Answer

The equation of the axis of symmetry of the graph of the function is x = 1.

Answer

The function has 3 zeros.

Answer

The maximum value of the function is 3.

Answer

The vertex of the graph of the function is (4, 1)

Question 12

Researched studied the population of a town over time and modeled the data using an exponential function.

* The initial estimated population was 48,000.
*After the first year, the population of the town was 50,400

If the population of the town continues to grow at this rate each year, which function can be used to model the population x years after the researchers began their study.

Accepted Answer

Question 13

Linear function k has a zero of -2 and a y-intercept of 6. Which graph best represents k?

Accepted Answer

Question 14

A coach has 96 golf balls for the school's golf team. The coach will give each player on the team 8 golf balls. The graph shows the linear relationship between y, the number of golf balls remaining for the team, and x, the number of players on the team. The coach will use no more than 6 players on the school's golf team. Which set best represents the range of the function for this situation?

Accepted Answer

{96, 88, 80, 72, 64, 56, 48}

Answer

{96, 84, 72, 60, 48, 36, 24}

Answer

{8, 9, 10, 11, 12, 13, 14}

Answer

{0, 1, 2, 3, 4, 5, 6}

Question 15

Which graph best represents part of a quadratic function with a domain of all real numbers less than -4?

Accepted Answer

Question 16

An insect population after x months can be modeled by the function g(x) = 18(1.3)^x. Which statement is the best interpretation of one of the values in this function?

Accepted Answer

The insect population increased at a rate of 30% each month.

Answer

The insect population increased by 13 insects each month.

Answer

The insect population decreased by 13 insects each month.

Answer

The insect population decreased at a rate of 30% each month.

Question 17

Which equation best represents the line shown on the grid?

Accepted Answer

y = -6

Answer

y = 0

Answer

x = 0

Answer

x = -6

Question 18

A florist is making bouquets of flowers for a wedding. Each bouquet will have 9 flowers. The graph shows the linear relationship between, y, the number of flowers used, and x, the number of bouquets.

The florist will use no more than 8 bouquets for the wedding. Which set best represents the domain of the function for this situation?

Accepted Answer

{0, 1, 2, 3, 4, 5, 6, 7, 8}

Answer

{0, 2, 4, 6, 8, 10}

Answer

{0, 18, 36, 54, 72, 90}

Answer

{0, 9, 18, 27, 36, 45, 54, 63, 72}

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