Question

Find clarissa salary when she sells $1700 worth of merchandise.

Answer 1

m = ($489 - $405)/($900 - $500)

= $84/$400

= 21/100

405 = (21/100)(500) + b

405 = 105 + b

b = $300

y = (21/100)x + 300

y = (21/100)($1,700) + $300

= $357 + $300

= $657