F(4) is 10 all you do is plug in 4 for x
Answer:
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Answer:
Option B
Step-by-step explanation:
we know that
The critical point of a function are the points on the graph of a function where the derivative is zero or the derivative does not exist.
we have
step 1
Take the derivative of the function
step 2
Set that derivative equal to 0 and solve for x. Each x value you find is known as a critical number
<em>Alternative Method</em>
The critical point of the quadratic equation is the vertex, because the function changes from decreasing to increasing at that point (In this problem the vertex is a minimum)
we have
Convert into vertex form
the vertex is the point (-2,-15)
therefore
The x-coordinate of the critical point is x=-2
<span>Given that 35% of the tracks are curved, this means that 100% - 35% = 65% of the tracks are straight.
Therefore, the fraction of the tracks that are straight is given by
</span>
Answer:
-5
Step-by-step explanation:
y=mx+b m is slope
y=<u>-5</u>x+8