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For each lawn mowing job, Marcus charges a fee for his equipment plus an hourly rate. The graph shows how he calculates his fee for providing mowing services. Which linear function, in the form of y = mx + b, best represent this situation? YA 20 13 17 15 A) y = x +5 B) y = x +5 C) y = 5x + D) y = 5x + 14 Total Cost ($) 0 1 2 3 4 5 6 8 10 11 12 14 15 16 17 18 19 20 Time (hours) A В Ос OD

For Each Lawn Mowing Job Marcus Charges A Fee For His Equipment Plus An Hourly Rate The Graph Shows How He Calculates His Fee For Providing Mowing Services Whic class=

Sagot :

Given data:

The first point on the graph is (a,b)=(0,5).

The second point on the graph is (c,d)=(4,11).

the expression for the equation of the line is,

y-b=(d-b)(x-a)/(c-a)

Substitute the given values in the above expression.

[tex]\begin{gathered} y-5=\frac{11-5}{4-0}(x-0) \\ y-5=\frac{6}{4}x \\ y=\frac{3}{2}x+5 \end{gathered}[/tex]

Thus, the equation of the line is y=3x/2 +5, so the (B) option is correct.