$20 a month. if u subtract the amount that she started with from $85, you get $60. $60 divided by 3 months is $20 a month
Y = 3x + 3 this is equation 1
y = x -1 this is equation 2
since equation 1 and 2 already defined y in terms of x, we're just gonna substitute y into the other equation. as 2 is shorter I'm going with that today
x - 1 = 3x +3
-1 - 3 = 3x - x
-4 = 2x
x = -2
now we've got x just sub it in equation 2
y = -2 -1
y = -3
so the answer is (-2,-3)
I don’t mean to take point but i do not see a picture :(
PART A: the function is
Y=25x+80
X represents the number of months.
PART B:
You plug in 6 for X
(25*6)+80=230
