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12. Use the graph of y = x3 to find a formula for the function y = f(). -(0,-1) y = 28 (a) y= V.= f(=) ( b) y = (* + 1 ) (c) y= 23 (d) y=1+? (e) None of these. 13. Find the slope of the line that passes through the points (6, 10) and (-1, 4). (a) (b) - - (c) ; (d) via (e) None of these. 14. Write the equation of the line that has a slope of -3/4 and passes through the point (1, 2). (a) 3x - 4y - 7=0 (b) 3x - 4y - 11 =0 (c) 3x + 4y - 11 =0 (d) 3x + 4y + 11 =0 (e) None of these. 15. What is the slope of a line that is perpendicular to the line given by 2x + 3y + 9 = 0? (a) (b ) WIN ( c ) (d) Nico (e) None of these. 16. Given f(x) = 7z + 2, find f-1(x). (a) 7z + 2 (b ) 7 +2 (c ) I - 2 (d) - 2 (e) None of these. 17. Given f(z) = 7z + 2 and g(x) = 12 - 9, find the product (fg) (z). (a) 713 +212 -63x - 18 (b) 7x3 - 18 (c) 212+72-7 (d) 7x2 - 61 (e) None of these. 18. Given f(x) = 2x3 + 1 and g(x) = z + 2, find (fog)(z). (a) 212+5 (b) 212 +3 (c) 2x2 + 4x +5 (d) 212 + 8x +9 (e) None of these