3.5-3.7 Practice Quiz

If you were to graph the f(x) and g(x) below
 $f\left(x\right)=x^2$  

 $g\left(x\right)=\ x^2\ -\ 2$  

how would you compare the the translation/shift that occurred?

• You shifted 2 units to the left

• You shifted 2 units down.

• You shifted 2 units up.

• You shifted 2 units to the right.

If you were to graph the f(x) and h(x) below
 $f\left(x\right)=x^2$  

 $h\left(x\right)=\ \left(x+\ 4\right)^2\ +\ 1$  

how would you compare the the translation/shift that occurred?

• You shifted 4 units to the left and up 1 unit

• You shifted 4 units down and 1 to the left.

• You shifted 4 units up and 1 to the left.

• You shifted 4 units to the right and down 1 unit.

Using the graph to the left, how do you compare f(X) and g(x)?

The f(x) is the red line and the g(x) is the blue line.

• translated/shifted up 7 units

• translated/shifted down 7 units

• translated/shifted to the right 7 units

• translated/shifted to the left 7 units.

Using the graph to the left, how would you compare f(x) to h(x)?

f(x) is the red line and h(x) is the blue line.

• Translated/shifted to the right 4 units and up 7 units.

• Translated/shifted to the left 7 units and up 4 units.

• Translated/shifted to the right 3 units and down 4 units.

• Translated/shifted to the left 3 units and down 4 units.

What are the x intercepts for h(x)?

*h(x) is the blue line

• (0,1) (0,5)

• (0, 0)

• (1, 0) (5, 0)

Use the given function to find the missing values.
 $f\left(x\right)=\ x^2-8x-20$  

Find 

f(0)

• 0

• -10

• -15

• -20

Use the given function to find the missing values.
 $f\left(x\right)=\ x^2-8x-20$  

Find 

f(-4)

• -20

• -10

• 28

• 0

Use the given function to find the missing values.
 $f\left(x\right)=\ x^2-8x-20$  

Find 

f(x) = 0,  x = ____________

• 10, 10

• -10, 2

• 0, 10

• 10, -2

Use the given function to find the missing values.
 $f\left(x\right)=\ x^2-8x-20$  

Find 

f(x) = 28,  x = ____________

• 12, -12

• 12, -4

• 0, 10

• 10, -2

Clarita wants to make a rectangular garden that has an area  $180\ in^2$ .  She wants the length to be 8 in longer than the width.  What would the dimension of her garden need to be?

•  $x\ \left(x\ +\ 8\right)\ =\ 180$  

•  $x\ +\ 8\ =\ 180$  

•  $x\ \left(x-8\right)\ =\ 180$