Unit 3 Review: Linear Functions & Analyzing Graphs

Describe the graph/table/scenario as continuous or discrete

• Continuous

• Discrete

Describe the scenario as continuous or discrete.

The function f(t) = 1750- .24t represents the number of fish in a pond after x tickets to fish in the pond.

• discrete

• continuous

Use the graph below to describe the domain.

• $\left\{-3\le x\le1\right\}$
  

• $\left\{-4<x<0\right\}$

• $\left\{-4\le x\le0\right\}$

• $\left\{-3<x\le1\right\}$

Use the graph below to describe the range interval

• $\left\{\ -3\le y\le1\right\}$

• $\left\{-4\le y<0\right\}$

• $\left\{-4\le y\le0\right\}$

• $\left\{-4<x<0\right\}$

y varies directly with x.

If y = 18 when x = 3, find x when y = 54

• x = 6

• x = 9

• x = 162

• x = 324

Y varies directly with x.

If y = 2 when x = 8, find y when x = 24

• y = 4

• y = 6

• y =16

• y = 48

Find the slope between ( 2, -3) and (5, -8)

• $\frac{3}{5}$

• $\frac{5}{3}$

• $\frac{-3}{5}$

• $\frac{-5}{3}$

Find the slope from the equation.

2x - 6y = 18

• $\frac{1}{3}$

• $\frac{-2}{6}$

• 2

• -2

Use the graph below to answer the question. Darius said the rate of change is two. Is he right? Why or why not?

• Darius is correct. He counted up two and over 1 to get the slope

• Darius is correct. His rate of change is $2.

• Darius is incorrect. His rate of change is $150.

• Darius is incorrect. His rate of change is $100.

Select all the words that mean x- intercept

• Zero

• b

• solution

• root

• y intercept