MA 15900 Midterm: Exam 2 Spring 2012 Solutions

1.916 2. 25 81 (y-3)2 (x+1)2 (x+2)2 (y-4 12+22 1 3. 4 16 9-1 5 6 2 7. 364 2 8.16

3. x2 y3 .3 2 4. 6. tan (xy) 7. y + 1 ercises 9-26, calculate the derivative with 9. 3y3 +x2 = 5 10. y .2 12. xy 14. x4 16. v 13. x3R5-1 18. 17. y-2/3 x3/2

Choose the one alternative that best completes the statement or answer the question. Find the center and radius of the circle. X^2 + y^2 -18x -16y + 64 = 0 center(-9, -8); radius:81 center (9, 8); radius:9 center (-8, -9); radius:81 center (8, 9); radius:9 Find the coordinates of the other endpoint of the segment, given its midpoint and one end point. midpoint(3, -8), endpoint(1, -5) (3, 1) (-5, -7) (-1, -2) (-1, -11) Evaluate the function. Find f(4) when f(x) = 4x^2 -4x+7 87 41 7 55 Find the requested value. Using the given tables, find (g f)(3) 3 5 7 13 f(-2) for f(x) = {7x-1, if x 6 15 -13 8 -4 Write an equation for the line described. Give your answer in slope-intercept form. m = -5 through (-4, 9) 5x + y =11 y = -5x + 18 y = -5x -11 y = 5x-9 Determine if the function is even, odd, or either. f(x) = x^4 -3x^2 -5 Even Odd Neither