Quiz about Q4W2 weekly quiz: Algebra AIR practice

Question 1

Describe the transformation that occurred

p(x) = f(x + 3)

Accepted Answer

Left 3 units

Answer

Right 3 units

Answer

Vertical Stretch

Answer

Up 3 units

Question 2

Describe the transformation that occurred.

w(x) = f(x - 7)

Accepted Answer

Right 7

Answer

Down 7

Answer

Up 7

Answer

vertical compression

Question 3

Describe the transformation that occurred

k(x) = f(x) - 9

Accepted Answer

Down 9 units

Answer

vertical compression

Answer

Left 9 units

Answer

Right 9 Units

Question 4

Describe the transformation from dotted to solid.

Accepted Answer

f(x + 5) + 3

Answer

f(x +3) + 5

Answer

f(x - 5) + 3

Answer

f(x - 3) + 5

Question 5

Which equation below is a quadratic function translated up 5 units?

Accepted Answer

y = x² + 5

Answer

y = (x + 5)²

Answer

y = 5x2

Answer

y = -x² - 5

Question 6

Which quadratic function is represented by the graph?

Accepted Answer

y = -2(x + 4)² + 5

Answer

y = 2(x - 4)² + 5

Answer

y = 2(x + 4)² + 5

Answer

y = -2(x - 4)² + 5

Question 7

If the blue graph is
f(x) = x²the red must be...

Accepted Answer

g(x) = (x - 3)²

Answer

g(x) = (x + 3)²

Answer

g(x) = x²+ 3

Answer

g(x) = x²- 2

Question 8

Is this exponential growth or decay?

Accepted Answer

Decay

Answer

Growth

Question 9

What is the initial value for the function: f(x) = 300(1.16)^x?

Accepted Answer

300

Answer

1.16

Answer

0.16

Answer

x

Question 10

The original value of a painting is $1400, and the value increases by 9% each year. Write an exponential growth function to model this situation.

Accepted Answer

y=1400(1.09)^x

Answer

y=1.09(1400)^x

Answer

y=1400(0.91)^x

Answer

y=1.09x

Question 11

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

Accepted Answer

y = 15(1.35)^x

Answer

y = 15(35)^x

Answer

y = 15(0.35)^x

Answer

y = 35(1.15)^x

Question 12

What type of function is y = 7(5/4)^x?

Accepted Answer

Exponential Growth

Answer

Exponential Decay

Answer

Linear

Answer

Quadratic

Question 13

This function has a pattern of adding/subtracting a constant to get the next y-value as the x value increases by 1.

Accepted Answer

Linear

Answer

Exponential

Answer

Neither

Question 14

This function has a pattern of multiplying/dividing a factor to get the next y-value as the x-value increases by one.

Accepted Answer

Exponential

Answer

Linear

Answer

Quadratic

Question 15

What type of function is this equation:

y= -3x + 12

Accepted Answer

Linear

Answer

Exponential

Answer

Quadratic

Question 16

What type of function is this equation:
y= 4^x+1

Accepted Answer

Exponential

Answer

Linear

Answer

Neither

Question 17

What type of function describes the story below?
You have $10 and earn $5 every week.

Accepted Answer

Linear

Answer

Exponential

Answer

Neither

Question 18

What type of function describes the story below?
You have $5 and triple your money every day.

Accepted Answer

Exponential

Answer

Linear

Answer

Neither

Question 19

The original value of a painting is $1400, and the value increases by 9% each year. Write an exponential growth function to model this situation.

Accepted Answer

y=1400(1.09)^x

Answer

y=1.09(1400)^x

Answer

y=1400(.91)^x

Answer

y=1.09x

Question 20

Chauncey buys cashews and pistachios. He writes the equations shown to model the relationship between the number of ounces of cashews, c, and the number of ounces of pistachios, p, that he buys.

c+p\ =\ 38

0.52c\ +\ 0.48p\ =\ 19.04

What is the total number of ounces of cashews and pistachios that Chauncey buys?

Accepted Answer

38

Answer

0.52

Answer

0.48

Answer

19.04

Question 21

Jenny charges a cost per hour plus a fixed fee to design a logo. The total, f(x), in dollars, of creating a logo in x hours is modeled by the function shown.

$f\left(x\right)=32x+100$

Which part of the function represents the fixed fee?

Accepted Answer

100

Answer

x

Answer

32x

Answer

32

Question 22

A venue sells tickets for a concert. Tickets for floor seats sell for $50 each, and tickets for balcony seats sell for $30 each. The venue sells 500 tickets for $20,500.

How many tickets of each type were sold?

Accepted Answer

floor tickets: 275

balcony tickets: 225

Answer

floor tickets: 250

balcony tickets: 250

Answer

floor tickets: 300

balcony tickets: 200

Answer

floor tickets: 225

balcony tickets: 275

Question 23

Use the graph of y=-x²+6x-5 to solve the equation -x²+6x-5=0

Accepted Answer

{1,5}

Answer

{-1,5}

Answer

{3,4}

Answer

{2,4}

Question 24

What is the correct solution to x² - 12x + 4 = 20?

Accepted Answer

{-1.211, 13.211}

Answer

{0, -16}

Answer

{6, -52}

Answer

{-1.211, 0}

Answer

{13.211, 0}

Question 25

What is the y-intercept of the function $y=4\left(5\right)^x?$

Accepted Answer

(0, 4)

Answer

(0, 0)

Answer

(0, 5)

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