You develop an app to students complete their homework. to earn money, you sell advertising space on the app’s main screen. an advertiser pays you $25 per month and an additional $0.003 each time the app is opened. graph the linear equation that represents your monthly income yy (in dollars) when the app is opened xx times.

y= .003x + 25

Step-by-step explanation:

In order to create the equation you just have to use the already given symbols to represent each of the values that we have, in this example the times that the app is opened is represented with X and the monthly income would be Y, the pay for everytime the app is opened is 0.003 so we just miltiply that by the times that the app is opened and is added to the base $25 dollars that the advertising pays you:

y=.003x+25

(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

24

step-by-step explanation: