Answer:
Step-by-step explanation:
The sum of a number and 9 is adding of any variable to 9.
E.g the sum of 8 and 7
8+7=15
We can also have the sum of two unknown numbers, we can let the first number be x and the second number be y, then the sum of the two unknown will be (x+y).
So, let apply this to the question
The sum of a number and 9, since we don't the number, let the number be n, then the sum of the number and 9 will be (n+9)
Then the correct option is B which is n+9
The answer is on symbolab.com
They do not intercept they are both straight horizontal lines one Where y is always equal to 4 and the other 5
Relative extrema occur where the derivative is zero (at least for your polynomial function).
So taking the derivative we get
<span>20<span>x3</span>−3<span>x2</span>+6=0
</span><span>
This is a 3rd degree equation, now if we are working with complex numbers this equation is guaranteed to have 3 solutions by the fundamental theorem of algebra. But the number of real roots are 1 which can be found out by using Descartes' rule of signs. So the maximum number of relative extrema are 1.</span>
