Exploring Functions: Adding and Subtracting Rational Expressions

What is the output of the function f(x) = 2x + 3 when x = 1?

• 5

• 4

• 3

• 2

If f(x) = 2x + 3, what is the coordinate pair for f(2)?

• (2, 8)

• (2, 7)

• (2, 6)

• (2, 5)

What is the y-value when x = 4 for the function f(x) = 2x + 3?

• 9

• 10

• 11

• 12

What pattern do the y-values follow in the table for f(x) = 2x + 3?

• Increasing by 3

• Increasing by 4

• Increasing by 2

• Increasing by 1

What is the purpose of building a table of values for a function?

• To solve equations

• To identify patterns

• To find the maximum value

• To simplify the function

When drawing a graph, why is it important to choose an appropriate scale for the axes?

• To avoid using negative numbers

• To fit all points on the graph

• To make the graph look nice

• To make calculations easier

How do you evaluate a function from a table?

• By looking at the corresponding y-value for a given x-value

• By using the function equation

• By drawing a graph

• By guessing the value

What is the y-value for G(0) if the table shows x = 0 and y = 7?

• 7

• 3

• 0

• 10

How do you find the y-value for a given x-value on a graph?

• By using the table

• By using the function equation

• By finding the corresponding point on the graph

• By looking at the x-axis

What is the y-value for H(7) if the point on the graph is (7, 4)?

• 6

• 5

• 4

• 3