Solving Linear Functions

Mr. Cabs wants to purchase dirt to cut back on standing water in his yard because he's afraid of Aedes aegypti giving him Zika virus. The number of trips he needs to take in his pickup truck, ,ƒ(d), to transport d cubic yards of dirt to his lawn can be found using the function ƒ(d) = d/2.5. If he is thinking about purchasing no more than 100 cubic yards of dirt, what is the range of the function for this situation?

• The set of all integers greater than or equal to 100. 

• The set of all integers from 0 to 100. 

• The set of all integers greater than or equal to 40. 

• The set of all integers from 0 to 40. 

Which inequality can be represented by the graph?

• y ≤ 2x

• y ≤ 2x - 1

• y ≥ 2x - 1

• y < 2x - 1

Solve for Y. Distribute, Combine like terms, Move the variable to one side, Cancel add/subtract, then cancel Multiply/divide.

• F

• G

• H

• J

Don't forget! Parallel lines have the same slope. Use coordinate to find what the equation should equal.

• A

• B

• C

• D

• A

• B

• C

• D

Solve for q. Distribute, Combine like terms, Move the variable to one side, cancel add/subtract, cancel multiply/divide.

Solve for Y. Distribute, Combine like terms, Move the variable to one side, cancel add/subtract, cancel multiply/divide.

• A

• B

• C

• D

Solve for m. DCMAM

• F

• G

• H

• J

Don't forget!

m=(Y2-Y1)/(X2-X1)

• F

• G

• H

• J

Solve for slope first. Don't forget rise/run.

• A

• B

• C

• D