Join the conversation on IDNLearn.com and get the answers you seek from experts. Get the information you need from our community of experts who provide accurate and thorough answers to all your questions.

The Clear-Bell Cell phone company has a plan that costs
customers $29.99 for a monthly service fee plus 3¢ per minute used.

a. Write a linear equation to model this situation.
b. Identify the slope and the y-intercept. Interpret the slope and y-intercept in the context of this problem.
c. If Polly talks for 136 minutes, how much would her cell phone bill be (excluding taxes)?


Sagot :

Answer: a. y=0.03x+29.99

b. Slope: 0.03. $0.03 charged every minute Clear-Bell Cell phone is used.

y-int: (0, 29.99). Total cost per month when phone isn't being used.

c. $34.07

Step-by-step explanation:

a. p=Cell phone plan. m=minutes used for phone.

3¢=$0.03

p=29.99+0.03m

y=0.03x+29.99

b. Slope: 0.03. $0.03 charged every minute Clear-Bell Cell phone is used.

y=0.03(0)+29.99

p=29.99 ==> y-int: (0, 29.99). Total cost per month when phone isn't being used.

c. y=0.03(136)+29.99

y=4.08+29.99

y=$34.07