Understanding linear functions

A rocket is 1 miles above the Earth in 30 seconds and 5 miles above the Earth in 2.5 minutes. What is the rockets rate of in miles per minute?

• 2 miles/minute

• 1 mile/minute

• 30 miles/minute

• 1.75 miles/minute

A rice costs Php45 per kilogram. How much would 6 kilograms of rice cost?

• 280

• 270

• 260

• 250

When you multiply or divide TWO negative numbers you always get a...

• positive

• negative

• undetermined number because it depends on which number is greater

• a two-digit number

A recipe says to use 3 cups of flour to make 48 cookies. What is the constant of proportionality that relates the number of cookies made, y, to the number of cups of flour used in, x?

• 0.6

• 48

• 3

• 16

The graph of the linear function is shown on the grid. What is the rate of change?

(Remember, find 2 ordered pairs, subtract the y's on top and the x's on the bottom)

What is the missing value?

• 1
• 3
• 2
• 0

Does the table represent a linear relationship between x and y?

• No, the rate of change is not constant.

• Yes the rate of change is 1.

• Yes, the rate of change is 2.

• No, the table does not represent a relationship/

18 vocab words learned in 2 hours; 27 vocab words learned in 3 hours

• yes, equivalent
• no, not equivalent

How much money does Rico earn each hour of doing chores?

• 2

• 4

• 6

• 8

When multiplying or dividing a POSITIVE and POSITIVE number your result will be...

• POSITIVE
• NEGATIVE
• DEPENDS ON WHICH NUMBER IS LARGER.