4.1 Relations and Functions

Determine whether the relation is a function

(2, 5), (3, 6), (4, 8), (5, 10)

• Function

• Not a Function

4.1 Relations and Functions

Ax + By = C

The formula above represents...

• Point-Slope Form

• Slope-Intercept

• Standard Form

• Point-Slope Form

• Linear Function

• Linear Equation

• Point-Slope Form

• Linear Function

• Linear Equation

4.1 Relations and Functions

What variable represents the domain (input)?

• X

• Y

4.1 Relations and Functions

For the function f(x) = 5x, find

f(2) and f(-3)

• f(2) = -10 and f(-3) = 15

• f(2) = 3 and f(-3) = 8

• f(2) = 7 and f(-3) = 2

• f(2) = 10 and f(-3) = -15

4.1 Relations and Functions

For the function f(x) = 3x - 2, find f(4) and f(-6)

• f(4) = 10, f(-6) = -20

• f(4) = 16, f(-6) = -26

• f(4) = 12, f(-6) = -18

• f(4) = 8, f(-6) = -14

4.1 Relations and Functions

A(p) = 200 + 20p

The function above represents the cost of booking a large party in a restaurant.

A represents the total cost, whereas p represents the amount of people going.

What would A(5) represent (write the answer down in your notebook)? Find A(5).

• 300

• 225

• 100

• 204

4.1 Relations and Functions

Determine whether the relation is a function.

(-1, 2), (-1, 3), (-1, 4), (-1, 5)

• Function

• Not a function

4.2 Linear Functions

What is the difference between the x/y intercepts of a line and the slope?

• The slope determines the direction, and the intercepts determine where they cross in the axis.

• The slope determines where they cross in the axis, and the intercepts determine the direction.

• The slope determines if a line has a solution, and the intercepts determine the direction.