Answer:
do u still need help. I can help
Binomial experiments are ruled by a very clean formula: if you want k successes performing n experiments with probability of success p, the probability is
If you plug your values, you'll get
I think that the answer is graph b
The gradient of this line is 9 so the gradient of the perpendicular line is -1/9 (the two perpendicular gradients must multiply to get -1).
The equation of a line is y=mx+c
where m is the gradient and c is the y intercept
We can then just substitute values in:
y = -1/9(x) -2