SOLUTION: find the rate of change and make a graph for: -$7.50 weekly for 12 weeks with a balance of $432.50 I thought it was using formula Y=mx+b but I am not sure.
Thanks,
Frank
Algebra.Com
Question 121564: find the rate of change and make a graph for: -$7.50 weekly for 12 weeks with a balance of $432.50 I thought it was using formula Y=mx+b but I am not sure.
Thanks,
Frank
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
the line formula Y=mX+b CAN BE USED TO GRAPH THIS PROBLEM.
FIRST WE NEED 2 POINTS.
THE END POINT IS (12,432.50)
THE BEGINNING POINT IS(0,432.50+12*7.50)=(0,522.5)
NOW WE NEED A SLOPE (m) & A Y INTERCEPT(b)
SLOPE=(522.5-432.5)/(0-12)=90/-12=-7.5
USING ONE WET OF X,Y VALUES & THE SLOPE WE NOW SOLVE FOR (b)
522.5=-7.5*0+b
b=522.5
THUS THE LINE EQUATION IS:
Y=-7.5X+522.5
(graph 500x500 pixels, x from -6 to 80, y from -10 to 550, y = -7.5x +522.5).
RELATED QUESTIONS
A lab orders a shipment of 100 frogs each week. Prices for the weekly shipments of frogs... (answered by ikleyn)
What is the Present Value of a loan that will have regular payments pf $50 bi-weekly for... (answered by ptfile)
How many way can make change for a $50 bill using $5, $10, and $20... (answered by EMStelley)
Max’s customers put money for charity in a collection box on the front counter of his... (answered by Solver92311)
Find(i) the compound interest and (ii) the effective rate if $1000 is invested for five... (answered by Boreal)
hey i need help making a graph for this problem. thanks!!
It costs a business $20 to... (answered by ajs12405)
1. A management consulting firm recommends that the ratio of midmanagement salaries to... (answered by edjones)
A recent survey of 50 executives who were laid off from their previous position revealed
(answered by stanbon)
Determine a function, I(t), that determines Jennifer’s investment account balance after (answered by ikleyn)