Algebra I Chapter 3 Study Guide

Determine whether the relation is a function. Type "yes" or "no" into the box.

Determine if the relation is a function, then state the domain and range.

Function?

Continuous or Discrete?

Domain:

Range:

Determine if the relation is a function, then state the domain and range.

Function?

Continuous or Discrete?

Domain:

Range:

You have $170. You start a part-time job that pays $8.50 per hour.

a. Does the situation represent a function?

b. You work no more than 4 hours. Find the domain and range.

Domain:

Range:

Approximate when the function is positive, negative, increasing, or decreasing.

Positive interval:

Negative Intervals:

Increasing interval:

Decreasing interval:

Approximate when the function is positive, negative, increasing, or decreasing.

Reminder: positive and negative intervals are ABOVE or BELOW the x-axis.

Positive intervals:

Negative Intervals:

Increasing intervals:

Decreasing intervals:

Evaluate the function when x= -3, 0, and 5.

f(x) = x + 8

f(-3) =

f(0) =

f(5) =

Evaluate the function when x= -3, 0, and 5.

h(x) = 3x - 9

h(-3) =

h(0) =

h(5) =