So, first your going to have to put it in y=mx+b 2x-2y=14 -2x -2x -2y=-2x+14 now divide everything by -2 y=1x-7 and then do the same to the other equation. x-y=2 -x. -x -y=-x+2 now divide everything by -1 y=x-2
Then you just graph it. You plot the y-intercept on the y axis. and then I this case go up one over one and your get the points for each player equation. y=1x-7. y- intercept:-7. slope:1 over 1 y=x-2. y-intercept:-2. slope:1 over 1
You can see that the point is moved 2 units (x axis), 2 units (y axis) and 1 unit (z axis). Because you write coordiantes as (x,y,z), you write (2,2,1)
You need to multiply 188 by 25%. But first convert 25% to a decimal 0.25. 188*0.25 is 47 Now we subtract 188 - 47 Which is 141 $141 is the sales price.
