What Is the Answer to the Question in the Picture?

[r-soy]

Hi

Help me in this question

Question in the picture ,,,

See

 

[HallsofIvy]

What help do you need? You can see that, since there are 5 horizontal and 5 vertical lines between the origin and "10" that each line represents a change of 2 in x and y. To find f(-4), start at the origin and go left(because it is negative) 2 lines (2 times 2= 4). Now go straight up to the graph of the function. How many lines is that? Don't forget to multiply the number of lines by 2 to get the function value.

 

[r-soy]

Thank you
you given me Answer Key