SOLUTION: a newspaper charges a flat rate to place an ad in the classified section of the newspaper and then charges a per line fee for any additional lines. one person placed a 4-line ad fo

Algebra ->  Linear-equations -> SOLUTION: a newspaper charges a flat rate to place an ad in the classified section of the newspaper and then charges a per line fee for any additional lines. one person placed a 4-line ad fo      Log On


   

Question 811555: a newspaper charges a flat rate to place an ad in the classified section of the newspaper and then charges a per line fee for any additional lines. one person placed a 4-line ad for $17.10 and another person placed a 6-line ad for $22.50.
write an equation that gives the total cost as a function of the number of lines in the ad
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
y=mx+b
17.10=4m+b,
22.50=6m+b
b=6.30 flat rate, m=2.70 per line
y=2.7x+6.3