The probability of selecting two red marbles would be 1/19
Step 2 , supposed to be 4^-15 instead of 4^-2. Always multiply the exponents together.
Answer: Chris made a mistake in step 2 -C
The shape of this graph is
I got the answer 3n^2 + 4 but that isn’t one of the listed options. take a look at my working out.
It should be y=2x-3 since it’s touching -3 on the y axis and the it’s going 2 units up and 1 to the right, making the slope = 2.
