Question

Use the equation Price =0.01375x²+0.1775x+1.25 to find the price of a 14-inch pizza, where x is the pizza size.

Answer 1

To determine the price of a 14-inch pizza using the formula provided, substitute 14 for x and perform the calculations sequentially, leading to a final price of $6.43.

Step-by-step explanation:

To find the price of a 14-inch pizza using the given equation, Price = 0.01375x² + 0.1775x + 1.25, where x is the size of the pizza in inches, we simply substitute x with 14.

Price = 0.01375(14²) + 0.1775(14) + 1.25

First, calculate 14 squared (14²):

• 14² = 196

Then multiply this number by 0.01375:

• 196 × 0.01375 = 2.695

Next, multiply 14 by 0.1775:

• 14 × 0.1775 = 2.485

Now, add all the terms together:

• Price = 2.695 + 2.485 + 1.25 = 6.43

The price of a 14-inch pizza would be $6.43.