Question

Paul uses the function y = 8x + 40 to model the situation. What score does the model predict for 3 h of homework? Explain or show your work!

Answer 1

y = 8x + 40.
Y = score, and x = hours of homework.
Substitute 3 into x
8 x 3 = 24
24 + 40 = 64
So the model predicts a score of 64 for 3 hours of homework.

Hope this helps.