Marginal cost analysis chart: prophone blazer quantity of phones price (in whole dollars) total revenue marginal revenue total cost marginal cost profit (or loss) 0 220 0 0 90 0 1 200 200 200 170 80 2 180 360 160 200 30 3 160 480 120 290 90 4 150 600 120 340 50 5 140 700 100 400 60 6 135 810 90 500 100 7 130 910 100 620 120 the owner of prophone has charted the company's marginal revenue and marginal cost for its latest line of smartphones, the blazer. use the chart to calculate the company's profit. if prophone sells four phones, the company will break even lose money maximize profits make some profit

you need to show the graph

step-by-step explanation:

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

w'x is 0.

hope it

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58