Please take a look at all, just mostly checking my answers as it is a practise test. thanks in advance!

1. Simplify V108 + V48. a) 10V3 b) V156 C) 20 d) 72 2. Simplify (415 + V2) (3V2 - V5). a ) 11V10 - 14 b) 11V10 - 4V25 c) 6V9 - 4V25 d) 3V2- 3V5 3. Describe the nature of the roots of 0 = 3x2 + 2x - 4. a) No real roots. b) Two equal real Two distinct real d) One x-intercept. roots. roots. 4. Find the maximum or minimum value of the function y = -3x2 + 18x - 21 and where it occurs. a) Max of 3 at x = 6 b ) Max of 6 at x = 3 c) Min of 3 at x = 6 d) Min of 6 at x = 3 5. Find the number of points of intersection between the quadratic y = 3x2 + x + 1 and the line y = 6x + 3. a) Two b) One c) None d) Three 6. Simplify the expression v V729x7 using positive rational exponents. a) 3x3 b) 3x7 c) 9x3 d) 3x6 W /UT 7. Evaluate without decimals: a) 32 b) 32 d) NIW 243 c ) 243 243 32 8. Simplify f (x) = 4 2x-3yz) Express your answer using positive exponents. a) b) x 4 y B x 4 16 x 4 C) 16y8 d) xy z 16 /9. Graphing the inverse of f (x) would mean to do the following: a) Reflect f (x) in the x-axis b Reflect f (x) in the y-axis c) Reflect f (x) in the line y = x Multiply x-coordinates by -1