Compare Functions Algebra

Which equation is represented by the table?

• y = 40(2)^x

• y = 40(1/2)^x

• y = 40 - 2x

• y = 40 - 1/2x

Which FUNCTION describes the transformation of shifting f(x)=x² two units right?

• f(x)= x² + 2

• f(x)= x² - 2

• f(x)= (x + 2)²

• f(x)= (x - 2)²

Which function correspond to the graph?

f(x) = 2x² + 12x + 16
What is the average rate of change of f(x) on the interval [-3, -2].

• 2

• 1/2

• -2

• -1/2

The cost of Nate’s service is described by y = 4x + 6. The table shows the cost of Beth’s service. Which service is cheaper for 8 movies in one month?

• Beth's service ($38 vs. $40) is cheaper

• Nate’s service ($42 vs. $44) is cheaper

• Nate’s service ($38 vs. $40) is cheaper

• Beth's service ($42 vs. $44) is cheaper

The cost of Patrick’s texting is described by y = 0.03x + 5. The cost of Melanie’s texting is shown in the table. Which service is cheaper when 50 texts are sent or received in one month? 

• Patrick’s service would cost $4.50. Melanie’s would cost $10.50. Patrick’s is cheaper.

• Patrick’s service would cost $6.50. Melanie’s would cost $12.50. Patrick’s is cheaper.

• Patrick’s service would cost $16.50. Melanie’s would cost $12.50. Melanie's is cheaper.

• Patrick’s service would cost $12.50. Melanie’s would cost $6.50. Melanie's is cheaper.

Two linear functions are shown below. Which function has the greater initial value?

• Function A

• Function B

• Function J, -6

• Function J, 8

• Function K, 5

• Function K, 10

Sam is saving more money per week than his sister.

• TRUE

• FALSE

The cost of Nate’s service is described by y=4x+10. The table shows the cost of Beth’s service. Which service is cheaper per month?

• Beth's is cheaper because it charges 5 per month and Nate's charges 6 dollars per month.

• Beth's is cheaper because it charges 5 per month and Nate's charges 4 dollars per month.

• Nate's is cheaper because it charges 4 per month and Beth's charges 5 dollars per month.

• Nate's is cheaper because it charges 4 per month and Beth's charges 10 dollars per month.