Midterm Review day 2

Midterm Review day 2

Multiple Choice

What is the domain and range of the graph below?

• 
  

  $D:\ -1<x<5$

  $R:\ -3<y<6$
  

• $D:\ -3<x<6$
  $R:\ -1<y<5$
  

• $D:\ -3<y<6$
  $R:\ -1<x<5$
  

• $D:\ \left\{-3,\ -2,\ -1,\ 0,\ 1,\ 2,\ 3,\ 4,\ 5,\ 6\right\}$ $R:\ \left\{-1,\ 0,\ 1,\ 2,\ 3,\ 4,\ 5\right\}$

Multiple Choice

What is the domain and range of the graph below?

• $D:\ -3<x<3$
  $R:\ 0<y<5$
  

• $D:\left\{-3,-2,\ 0,\ 3\right\}$
  $R:\ \left\{0,\ 1.\ 3,\ 5\right\}$
  

• $D:\ -3<y\le3$
  $R:\ 0<x\le5$
  

• $D:\ -3<x\le3$
  $R:\ 0<y\le5$
  

Fill in the Blanks

The scatterplot to the left shows the earnings in dollars for hours worked at a restaurant.

What is the equation of the best fit line (hint: the equation y=ax+b)

y =_ _._x+

._

don't put y = in the answer!

Fill in the Blanks

What is the correlation coefficient?

hint: What is the r-value?

r = .

Multiple Select

Select all the transformations from the linear parent function

 $f\left(x\right)=x$ , 
 $f\left(x\right)+3$  

• shifted down 3

• shifted up 3

• steeper

• less steep

• reflected

Multiple Select

Select all the transformations from the linear parent function

 $f\left(x\right)=x$ , 
 $f\left(x\right)-2$  

• shifted down 2

• shifted up 2

• steeper

• less steep

• reflected

Multiple Select

Select all the transformations from the linear parent function

 $f\left(x\right)=x$ , 
 $-2f\left(x\right)$  

• shifted down 2

• shifted up 2

• steeper

• less steep

• reflected

Multiple Select

Select all the transformations from the linear parent function

 $f\left(x\right)=x$ , 
 $\frac{2}{3}f\left(x\right)$  

• shifted down 2

• shifted up 2

• steeper

• less steep

• reflected

Multiple Select

Select all the transformations from the linear parent function

 $f\left(x\right)=x$ , 
 $-\frac{1}{2}f\left(x\right)+3$  

• shifted down 3

• shifted up 3

• steeper

• less steep

• reflected

Multiple Select

Select all the transformations from the linear parent function

 $f\left(x\right)=x$ , 
 $3f\left(x\right)-4$  

• shifted down 4

• shifted up 4

• steeper

• less steep

• reflected

Fill in the Blanks

Solve the following equation:

 $3(x+5)+2=13-7(2x-3)$  
x = _

Fill in the Blanks

Solve the following equation:

 $-2x+1=8(x+2)-5x$  

Multiple Choice

Solve the following equation:

 $4(2x-5)+8≤7-3(x-1)$  

•  $x\ge2$  

•  $x\le2$  
  

Multiple Choice

Solve the following equation:

 $3(x+2)-2x>4(x-3)+6$  

•  $x<4$  

•  $x>4$  

Multiple Choice

Which of the following is equivalent to

 $-5x+y=20$  ?

•  $y=-5x+4$  

•  $y=-4x-4$  

•  $y=5x+20$  

•  $y=20x-4$  

Multiple Choice

Which of the following is equivalent to

 $4x-2y=8$  ?

•  $y=2x-4$  

•  $y=2x+4$  

•  $y=-2x+4$  

•  $y=-2x-4$