functions FSA review

functions FSA review

By Consuelo Morales

Poll

temp check...how are you doing?

• 1

• 2

• 3

• 4

• 5

Open Ended

Martha and Howard are running at a constant speed in a marathon. Martha runs at 4.5 miles per hour. Howard's progress is shown on the table. Who runs faster?Explain.

Fill in the Blanks

Multiple Choice

George is selling sandwiches at a deli. The table shows the average number s of sandwiches he sells over time t, in minutes. What linear functions is represented by the table?

• s = -2t + 13

• s = 13t + 2

• s = 2t

• s = 2t + 19

• s = 2t + 13

Multiple Select

Which statement comparing the functions is true? Select ALL that apply

• the slope of function W is less than the slope of function Z

• the slope of function W is greater than the slope of function Z

• the y-intercept of function W is equal to the y-intercept of function Z

• the y-intercept of function W is greater than the y-intercept of function Z

• the y value when x=-4 for function W is equal to the y-value when x=-4 for function Z

Multiple Select

A two-mile taxi ride costs $3.90. A five-mile taxi ride in the same taxi costs $7.50. What does this information tell you about how the cost of a taxi ride is calculated?

Select ALL the statements that describe how the cost of a taxi ride is calculated.

HINT...make a table!

• At the beginning of the taxi ride, the cost is already $1.50

• For each additional mile of a taxi ride, the cost increased by $1.50

• The rate of change of the function that models this situation is $1.20 per mile

• The initial value of the function that models this situation is $1.20

• The equation that models this situation is y=1.2x + 1.5, were x represents the miles driven and y represents the cost in dollars

Multiple Choice

Which graph best describes the relationship between the plane's altitude and time?

• a

• b

• c

• d

Multiple Choice

Which of the following situations corresponds to this graph?

• A car accelerates from a stop, travels at a constant speed, slows, and then travels at a slower speed.

• An airplane travels at a constant speed then decelerates to a slower speed.

• An athlete warms up by walking around the track, runs, then jogs.

• A bicyclist accelerates, travels at a constant speed, then slows to a stop.

Multiple Choice

Gloria drives her daughter to school in the morning and then comes home. She stays home until she has to go to pick up her daugher from school, and then they both return home again. Which graph best shows the situation?

• a

• b

• c

• d

Fill in the Blanks

Multiple Select

Which of the following sets of ordered pairs (x,y) represent y as a function of x? Select ALL that apply.

• {(1,2), (1,3), (1,4), (1,5)}

• {(1,2), (2,2), (3,2), (4,2)}

• {(-1,-1), (0,0), (1,1), (2,2)}

• $$\left\{\left(\frac{1}{2},0\right),\ \left(1,\frac{1}{2}\right),\ \left(\frac{3}{2},1\right),\ \left(2,\frac{3}{2}\right)\right\}$$  

• {(4,-2), (1,-2), (0,0), (4,2)}