Write the equation of a line whose slope is -2 and goes through the point (1,-1)

y= -2x+1

Step-by-step explanation:

y=mx+b

Substitute the ordered pairs into the equation

So:

y= -1   m(slope) = -2  x=1   b=?

-1 = (-2)(1) + b

-1 = -2 +b  add 2  on both sides to get b by itself

-1 +2 = b

b=1  

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88

ok

step-by-step explanation: