Linear and Non Linear Graphs

Pick the equation that best describes the graph

Which equation best describes the curve

Graphs G and J have equations

Given the table below, what is the gradient?

• 4

• -2

• 1

Is this graph linear or non linear?

• Linear

• Non Linear

The graph shows the area in square feet Sally has left to paint. The equation A = 392 - 14x gives the square feet Lisa has left to paint as a function of time in minutes. Which statements are true? Choose all the correct answers.

• Sally and Lisa both have 360 ft2 left to paint at the start.

• Lisa paints more square feet per minute than Sally.

• Lisa will finish painting before Sally.

• After 10 minutes of painting, Sally will have less to paint than Lisa.

• After 20 minutes of painting, Lisa will have more to paint than Sally.

Linear graphs form a ​ (a)   line, and non-linear graphs form a ​ (b)   line.

• Straight

• curved

(a)  

• F

• G

• H

• J

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $100 is earned for every 2 hours worked

• $500 is earned for every 8 hours worked

• $200 is earned for every 3 hours worked

Hans opens a new video game store and pays the gaming companies $5.00 for each video game he buys from them. The amount Hans pays is given by f(x)=5x, where x is the number of video games purchased. Plot the first 3 points in the function.