2122 First Semester Exam Review

Which set of values IS a function?

• {(9,5), (10,5), (9,-5), (10,-5)}

• {(3,4), (4,-3), (7,4), (3, 8)}

• {(6,-5), (7, -3), (8, -1), (9, 1)}

• {(2, -2), (5, 9), (5, -7), (1, 4)}

.

• Function
• Not a Function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.4

CCSS.HSF.IF.B.5

CCSS.HSF.IF.C.7

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

Does the graph below represent a function?

• Yes, because it passes the vertical line test.

• No

What is f(5) for the function  $f\left(x\right)=4x+8$  

• -8

• 10

• 28

• 12

What is  $f\left(0\right)$   for the function $f\left(x\right)=7x+11$  

•  $2x$  
  

•  $-3$  

•  $+3$  
  

•  $11$  
  

For the function we inputted the whole numbers from 1 to 10.  Which of the numbers below is NOT an output for  $f\left(x\right)=5x-2$  

•  $3$  

•  $8$  

•  $13$  
  

•  $17$  

In the equation, y = mx + b, the letter b is the ___________.

• y-intercept

• x-intercept

• slope

• rate of change

What are the x- and y-intercepts of the linear function given by the equation 3x + 4y = 12

• (4, 0) and (0, -3)

• (-3, -4)

• (-4, 0) and (0, 3)

• (4, 0) and (0, 3)

Tags

CCSS.HSA.REI.D.10

What is the solution to this system of equations?

• (4, -1)
• (-1, 4)
• (-4, 1)
• (-4, -1)

Tags

CCSS.8.EE.C.8B