Step-by-step explanation:
you know by using the x and y coordinates of the point in the equations and see, if both equations are still true.
if yes, it was a solution, and if just only one is false, then it was not a solution.
(3, -2) in
y + 4x = 10
5x - y = 13
so,
-2 + 4×3 = 10
-2 + 12 = 10
10 = 10 true
5×3 - (-2) = 13
15 + 2 = 13
17 = 13 false
so, it was NOT a solution.
I looked it up and wrote the 14=5:2 in and this is what it said
You would have 640 flies in 3 days.
Answer:
-2.5x+2
I hope this is good enough:
y-intercept is at positive 2 so you would have +2
it has a negative slope because it is going downwards
on the graphing calculator I used 2 wasn't big enough to make the x intercept and 3 was to big so I went in the middle and it looked correct.