Question 903527
One day costs $3.50 and four days costs $8.00.

a) (1,3.5)(4,8)
b)m=4.5/3=1.5
b=-1*4.5/3*1+1*3.5=2
c)y= 1.5x+2
y=11
d)y= 1.5x+2
18.50= 1.5x+2
16.50=1.5x
x=11