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Name___________________________________ Honors PreCalculus 2.1-2.4 & A8 Quiz
SHOW ALL WORK to receive full credit.
Evaluate the function.
- Find f(k - 1) when f(x) = 5x2 + 4x - 4.
Evaluate the function. Express the answer in simplified form.
- f(x) = 3x2 - 5x + 2. Evaluate f(x + h) - f(x) h
, where h (^) โ 0
Find the domain of the function.
- x x - 3
Determine whether the graph is that of a function. If it is, use the graph to find(a) its domain and range; (b) the intercepts, if any; and (c) any symmetry with respect to the x-axis, the y-axis, or the origin.
-โ -3โ x 4
-โ 2
-โ 4
โ 4
โ 2
3โ 4 โ
1 y
-โ -3โ x 4
-โ 2
-โ 4
โ 4
โ 2
3โ 4 โ
1 y
Find the average rate of change for the function over the given interval.
- f(x) = 3 x - 2
between x = 4 and x = 7
Solve the problem. Use a graphing calculator to graph the data.
- A drug company establishes that the most effective dose of a new drug relates to body weight as shown below. Let body weight be the independent variable and drug dosage be the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the most effective dosage for a person weighing 110 lbs? Body Weight (lbs)
Drug Dosage (mg) 50 10 100 11 150 16 200 17 250 19
Use a graphing utility to graph the function. Find any local maxima or minima.
- f(x) = 2 + 8x - x
Graph the function.
- Graph the function: f ( x ) = x^ + 3,^ x^ โฅ^0
