Question

A pizzeria charges $8 for a large cheese pizza, plus $2 for each topping. The total cost for a large pizza is given by the equation C=2t+8, where t is the number of toppings. Graph the equation for t between 0 and 5 toppings, and explain the meaning of the slope and y-intercept.

Answer 1

Slope is the rise and run of a point on the graph to the other 
the y intercept is where a line crosses the y axis for example, (0,5) so 5 is the y intercept

(0,8), (1,10), (2, 12), (3, 14), (4, 16), (5, 18)

Answer 2

Answer with explanation:

The total cost for a large pizza is given by the equation:

                            C=2t+8

where  t is the number of toppings.

Now, when t=0 we have:

         C=8

when t=1 we  have:

          C=10

when t=2 we have:

         C=12

when t=3 we have:

             C=14

when t=4 we have:

           C=16

when t=5 we have:

               C=18

i.e. the graph of this equation is the ordered pair:

  (0,8) , (1,10) , (2,12) , (3,14) , (4,16) and (5,18)

• Now, the slope of this function means the cost of each topping.

• and the y-intercept represents the cost of the pizza when there are no toppings.