+1 862 207 3288 CIS 490 Online Fall 2014
Written Homework#3
1. For the function: y = f(x) = 2×2 – x + 2, find the value of y for x = -1, -.5, 0, .25, .5, 1, 1.5. Plot the points on the graph below and draw the curve.
What is the name of this curve?
2. For the parabola: y = f(x) = 1 – x2, graph the function for x between -1 and 1.
3. For the parabola y = x2 ñ 6x +5 use the quadratic formula to find the values for x that give y = 0.
4. Graph the functions y=x2, y=x3, y=x4 on the graph below. For example find the values of each function for x = 0, 1, 2, 3, 4.
Which of the curves rises the fastest?
5. Consider the graph below:
6. With a calculator find v0, v1,v2,v3,v4,v5, v9,v11,v16.
7. With a calculator find 2^(5/2), ?2=2^(1/3), ?27, ?1331.
8. With a calculator find the values of the functions: y=e^x, and z=ln?(x),
for x = .2, .5, 1, 2, 2.5.
9. Find 7!.
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