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Function
Domain and Range
Y-Intercept/0 function
Evaluating Functions
100

Ryan has three sets of ordered pairs. Which of Ryan's sets represents functions?

  1. {(2, 5), (5,2), (0,0), ( –2, 5)}

  2. {(2,5), ( –9,0), (0, –9), ( –9, 5)}

  3. {(2, 5), (5, –9), (2, 0), (0, 2)}

A. Set 1

B. Set 1 and 3

C. Set 2 and 3

D. All of the above


A. Set 1

100

Lisa graphed a function on the coordinate plane.

Which of the following BEST describes the range of the function  graphed?

A. all real numbers

B. all real numbers less than or equal to -1

C. all real numbers less than or equal to 4

D. all real numbers greater than or equal to -4 

D. all real numbers greater than or equal to -4

100

What is the y-intercept of the graph shown below? 

 

A.  4

B. 5

C.  –2

D.  −4

C.  –2

100

Raquel was given the function . Determine g6). 

A.  7

B.  –9

C.  2

D.  –11

D. -11

200

Which graph does NOT represent y as a function of x?

A.B.

C.D.

C.

200

Ronnie graphed a function. What is the range of the function?

 

A.  {0, 2, 4, 5, 6, 8}

B.  {0, 2, 5, 12, 8}

C.  {0, 1, 6, 11, 12}

D.  {0, 1, 4, 5, 12}

C.  {0, 1, 6, 11, 12}

200

The graph below shows the h(n), the height of the plant in centimeters, n days after it was planted. 

How tall was the plant initially? 

1.5 cm

200

Mr. Guillory presented his students with the following function. Determine the value of g( –1). 

 

A. 4

B.  –4

C.  2

D.   –2

B. -4

300

Yazmine is given the following relations. Which representation shows y as a function of x?

A. {(1, 3), (2,1), (3,1), (4,3)} B.

C.D.

A. {(1, 3), (2,1), (3,1), (4,3)

300

Which statement(s) is best supported by the quadratic function, h,  shown below?

A. The y-intercept is (0, –2)

B. The zeros are 0 and 6. 

C. h(3) = 8

A. I and II only

B. I and III only

C. II and III only 

D. I, II, and III

B. I and III only

300

What is the y-intrcept of the graph.


(0, -5)

300

The height of a golf ball hit into the air is modeled by the equation h(t) = –16t2 + 48t, where h(x) represents the height, in feet, and t represents the number of seconds that have passed since the ball was hit. 

What is the height of the ball after 2 seconds? 

A. 16 feet

B. 32 feet

C. 64 feet

D. 80 feet

B. 32 feet

400

Candace wrote a set of ordered pairs to show y as a function of x. 

{(0, 4), (2, 6), (4, 8), (x, 7)}

Which value of x will make this relation a function?

A.  0

B.  2

C.  6

D.  4

C. 6

400

Laura graphed part of an exponential function on the coordinate plane. What is the domain of the function?

 

A.  1 < x ≤ 6

B.  5 ≤ x < 6

C.  1 ≤ x ≤ 6

D.  5 ≤ x ≤ 6

A.  1 < x ≤ 6

400

What is the zero function of the graph shown below? 

 

A.  4

B. 5

C.  –2

D.  −4

B. 5

400

If , which statement is true? Select THREE correct answers. 

A. g(0) = 20

B. g(6) = –7

C. g(10) = 0

D. g(0)= –10

E. g(20)=0

F. g(8) = –4 

B. g(6) = –7

D. g(0)= –10

E. g(20)=0

500

Which graph represents y as a function of x?

A

B.

C.

D.

B.

500

Mrs. Gobert presented her students with the following function. What is the domain and range of the function?



Domain:  −8 ≤ x ≤ 4

Range:  −1 ≤ y ≤ 8

500

What is the negative zero function of the graph shown?

-3

500

The value in dollars, f(x), of a car x years after purchase can be represented by the function f(x) = 25000(0.86)x. To the nearest dollar, how much more is the car worth after 2 years than after 3 years? 

A. $2,589

B. $6,510

C. $15,901

D. $18,490

A. $2,589