8.AT.D.11: Describe qualitatively the functional relationship between two quantities by analyzing a graph (e.g., where the function is increasing or decreasing, linear or nonlinear). Sketch a graph that exhibits the qualitative features of a function based on a narrative description.

Describe qualitatively the functional relationship between two quantities by analyzing a graph (e.g., where the function is increasing or decreasing, linear or nonlinear). Sketch a graph that exhibits the qualitative features of a function based on a narrative description.

Example Problems

What, if any, difficulties did you encounter filling out these tables? Explain.

Determine if the following situation could be modeled by

y = 2x + 5

:

I have a sequence of integers. The first term of the sequence is

7

and the difference between any consecutive terms is always equal to

2

.

Determine if the following situation could be modeled by

y = 2x + 5

:

Joaquin earns

\$2.00

for each magazine sale. Each time he sells a magazine he also gets a

\text{five-dollar}

tip. How much money will he earn after selling

x

magazines?

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