Find a formula for each function graphed below. Ay (-1,4) (1,4) K. a. b. Q ✔ Q a. Select the correct choice below and fill in the answer boxes to OA. f(x)= OB. f(x)= ¯¯¯ -1sxs

Evaluate this function at x=7. Write the exact answer. Do not round. If the answer is undefined, write Und as your answer.   F(7)=

Find the largest open intervals on which the function is concave upward or concave downward, and find the location of any points of inflection. 3 f(x) = -a X-3 Select the correct choice below and fill in the answer boxes to complete your choice. (Type your answer in interval notation. Use a comma to separate answers as needed. Use integers or fractions for any numbers in the expression.) O A. The function is concave upward on and concave downward on O B. The function is concave upward on There are no intervals on which the function is concave downward. O C. The function is concave downward on There are no intervals on which the function is concave upward.

Use the first derivative test and the second derivative test to determine where each function is increasing, decreasing, concave up, and concave down. 1 3 y = (4x-1) XER Select the correct choice below and, if necessary, fill in the answer box within your choice. A. The function is increasing on (Type your answer in interval notation. Use integers or fractions for any numbers in the expression. Simplify your answer.) OB. The function is not increasing on any interval.