Now
Now
Probability of not selecting gray =12/14
Now
But pink is in 5
Get common denominators, and solve for each expression
7/5 - 3/4 = 28/20 - 15/20 = 13/20
1/4 + 2/5 = 5/20 + 8/20 = 13/20
These two fractions are equivalent
So we know that the slope intercept form is y=mx+b
so the formula is y=3*-3+-6
It's just telling you to multiple like 9×1=9 9×2=18 and so on.