Chris withdraws $7.50 per week from his savings account. After 15 weeks, the ba

Algebra
Tutor: None Selected Time limit: 1 Day

Chris withdraws $7.50 per week from his savings account.  After 15 weeks, the balance in the account is $585.

 

 

A.     Write an equation in point -slope form to model this.

 

 

 

 

B.    Write the equation in slope-intercept form.

 

                                               

 

 

C.     How much is in the account after 1 year (52 weeks)?

 

Jun 26th, 2015

Thank you for the opportunity to help you with your question!

Point slope form image

y-585=7.5(x-15)

y=mx+b 

585=7.5(15)=b

585=112.5+b

b=472.5

y=7.5*52+472.5=862.5


Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 26th, 2015

Thank you! Which one is the point slope form and slope intercept form?

Jun 26th, 2015

Hello?

Jun 26th, 2015

point slope: y-585=7.5(x-15)

slope-intercept: y=7.5x+472.5

Jun 26th, 2015

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