Respuesta :

Given:

a graph is given

Required:

To simplify which option is correct

Explanation:

From the graph we know the model should be line. And it passes through (15,60)

if the model is y=x+8 , y =15+8=23

there is too much difference between 23 and 60, so y=x+8 is wrong

and y=3x+5 is right

Required answer:

y=3x+5