The answer is 10 as you simply plug in x in the f(x) problem so 3*2(.5)+1=10
Try this option:
way 1: using the picture, if x=-3 then y=-6.
way 2: the equation of this line is y=x-3; it means that y(-3)=-6.
x = 5/7 - 3/5 = 25/35 - 21/35 = 4/35
first add 25 and 5 and divide 960 by 30
Given:
P = 200k - 500
A) To determine the constraints on profit and the value of the number of knives sold, k, let P = 0
P = 200k - 500
0 = 200k - 500
solve for k,
k = 2.5 knives or 3 knives
