Question

1)Susan wants pizza for her birthday party. It costs $8 per pizza plus a $5 delivery fee. She doesn't know how many she needs, so she calculates the price for various numbers of pizza.

How would I find out if this is linear or non-linear

Answer 1

cost = 8 n + 5
that is of form
y = m x + b
which graphs as a straight line with y intercept 5 and slope 8