Use the equation m=y2-y1/x2-x1 to find the slope 6-8/0-(-2) -2/2 M=-1 Plug inyour slope one set of coordinates into y=mx+b. I’ll use the ordered pair (0,6) 6=-1(0)+b 6=b Equation: y=-x+6
There are 4 blue marbles There are 2 black marbles There are 3 red marbles There are a total of 9 marbles You minus the black marbles from the total 9-2=7 If there are 7 non black marbles then the ratio is 7:9 7:9 is the probability that you won't get a black marble