Functions 2

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Tags

CCSS.8.F.A.1

• Function, because the line touches the y-axis

• Not a Function, because the line is curved

• Function, because it passes the vertical line test

• Not a function, because it fails the vertical line test

Which of these is NOT the same

• Range

• Input

• Dependent Value

• Y-Value

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is this mapping a function or not a function?

• Function, because the outputs mix up.

• Not a function, because -1 and 4 can't output 4 at the same time

• Function, because each input has exactly one output

• Not a function, because the inputs and outputs cross each other.

Tags

CCSS.8.F.A.1

Does this function pass the Vertical Line Test?

• Yes, because it's curved

• No, because there's no vertical line in the function

• No, because it touches the x-axis twice

• Yes, because any vertical line through the function touches it once.

Which ordered pair could you add to the following list of points to create a function? (3, 5) (4, 9) (2, 5)

• (3, 7)

• (4, 1)

• (1, 9)

• (2, 6)

Tags

CCSS.8.F.A.1

Complete the function table for y = -2x + 1.

• -2(2) + 1; -2

• -2(2) + 1; -3

• -2(2) + 1; -1

• -2(2) + 1; 0

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

The grocery store sells cantaloupes for $4.50 per pound. Write a function to represent the cost, c, for the number of pounds of cantaloupes bought, p.

• c = 45p

• c = 4.5p

• p = 4.5c

• p = 45c

Tags

CCSS.HSF-BF.A.1A

The number of candy items in the bowl would be:

• Continuous because you don't know how many there are

• Discrete because there is space between each piece of candy

• Continuous because you can't weigh them

• Discrete because I can choose chocolate, Mary Jane, Twizzlers, etc.

IF KE=f(v), and  $f\left(v\right)=\frac{1}{2}mv^2$  , evaluate  $f\left(8\right)$  where  $m=10$  

Tags

CCSS.HSF.IF.A.2