A pizza buffet has prepared 18 pizzas to place on the line at the beginning of lunch at 11:00 a. M. The equation y 14x + 18 can be used to describe the total number of pizzas that have been placed out on the buffet line, where x represents every 9 minutes after 11:00 a. M. Which statement best describes the rate of change in the number of pizzas set out on the buffet?

b. Every 18 minutes, 28 more pizzas were set out on the buffet.

Step-by-step explanation:

The equation is in the form: y = mx + c

m is the gradient which represents the rate of change per a given value of x.

x here is every 9 minutes after 11:00. Every 18 minutes therefore will give x a value of 2 because 18/9 = 2.

The rate of change every 18 minutes is therefore;

= 14 * 2

= 28 pizzas

the correct answer is 5

x-3y=4

step-by-step e