Answer:
by multiplying all numbers seperatly by each other and adding those
Step-by-step explanation:
The slope is the change in Y over the change in X
The change in y is -2-0 = -2
The change in X is 3-9 = -6
The slope is -2/-6, which simplifies to 1/3
Cross multiply to get 8k+24=56 then solve for k so subtract 24 from each side to get 8k=32 so k=4
Seven and twenty five hundredths, or seven and a quarter