CASE A: Discrete Domain, Limited Number of Points      f(x) = 3x 2 + 6x -2.    Domain: x E { -2, -1, 0, 1, 2} 1.Compute f(x) for each of the values in the domain. f(-2) = 3(-2)2 +6(-2) - 2 = -2f(-1) = 3(-1)2 +6(-1) - 2 = -5 f(0) = 3(0)2 +6(0) - 2 = -2 f(1) = 3(1)2 +6(1) - 2 = 7 f(2) = 3(-2)2 +6(2) - 2 = 22 2. Mark down all the values that you obtained in the computations. |
CASE B: Continuous Domain, Infinitely Many Points-Interval  
   f(x) = x 2 - 3x +2.   Domain: x E (0,4] 1. Graph the function by hand or use Desmos.com. ![]() 2. Read the range from the graph, starting from the lowest 3.Write the range in the format: y E (-0.25, 6] |
CONCEPT CHECK: When f(x) = x3 +2x2 -3x + 1, f(-1) is: