Classify the discontinuities in the function below at the given point. f(x) = x²-12x+35 x-5 ; x = 5 Select the correct choice below, and, if necessary, fill in the answer box to complete your choice. OA. The discontinuity at x = 5 is a removable discontinuity. The function can be redefined at this point so that f(5) = OB. The discontinuity at x = 5 is an infinite discontinuity. Oc. The discontinuity at x = 5 is a jump discontinuity. www

+ 3. An amusement park is planning a new roller coaster. Part of it is to have the shape of the cosine function. The high and low points of this part differ by 24 meters and cover a horizontal distance of 40 meters from the high point to the low point. The low point is 6 meters below ground in a tunnel. Let y repre- sent the number of meters the track is above or below ground, and let x repre- sent the number of meters the track is horizontally from the high point. a. Sketch this situation. b. The equation y = 12 cos (4.5x) + 6 models the situation when x and y are in meters and 4.5 is in degrees per meter. Rewrite y = 12 cos (4.5x) + 6 as an equation for which the coefficient of x is in radians per meter. c. What is the length of a vertical support girder at the high point? At a dis- tance of 6 meters horizontally from the high point? At a distance of 20 meters horizontally from the high point? d. Measured horizontally, how far from the high point does the roller coaster enter the…

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)=

Evaluate this function at x=−5. Write the exact answer. Do not round. If the answer is undefined, write Und as your answer. F(-5)=