Find the constants m and b in the linear function y = f(x)= mx + b, such that f(1) = -2 and f(3) = 6. a) m – 4, b = -6. O b) m = -4,b=2. O c) m = - O d) m = ,6 = . O e) None of these. Page 7 of 25 Previous Page Next Page

Given that A = {1, 2, 3, 4, 5} and B = {x, y, z}, determine which of the sets of ordered pairs represents a function from A to B. Explain the reason(s) why or why not for each i)  {(1, z), (2, x), (3, y), (2, x)} ii)  {(1, z), (3, y), (2, x), (4, x), (5, 5)} iii)  {(1, y), (2, y), (5, x), (3, y), (4, y)} Which of the following graphs represent y as a functionof x? Explain the reason(s) why or why not for each ii)

Mark all points that are on the line y = 4x – 7. | (3, 5) O(- 2, – 15) O (4, – 7) )(- 3, – 20)

? Solve