CHAPTER 1 TEST REVIEW
1.Write the equation of the line perpendicular to the line 4x+y = 1 and runs through (2,-1) y + 1 = ¼(x-2) y = ¼x - 1½
Given f(x) = 6x-4 and g(x) = x Find f(g(-2) 3. Find g(f(x)) 4. Find the inverse of f(x) f(6) = 32 (6x-4) x 2 – 48x + 18 x = 6y – 4 x+4 y -1 = 6
5. Find the center and radius: x 2 + y 2 + 2x - 14y = 71 x 2 + 2x y 2 – 14y + 49= (x+1) 2 + (y-7) 2 = (x+1) 2 + (y-7) 2 = 121 C(-1,7) r = 11
6. Describe the changes y = -(6x) Reflects across x axis Horizontal shrink by 5 Moves up 8
7. Solve algebraically: ⅔x-2<8 and ⅔x-2 -8 ⅔x<10 and ⅔x -6 x<15 and x -9
8. a. Convert 40º to radians. b. Convert to degrees a.2π 9 b. 20º
9. Find f -1 (x) and SHOW that f(f -1 (x)) = x and f -1 (f(x)) = x if f(x )=