a. Complete the table of values for the function y = 2x2 + 1, plot the values of x and y as points in a coordinate plane, and draw a smooth curve through the points.
x | −3 | −2 | −1 | 0 | 1 | 2 | 3 |
y |
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b. Graph the function y = 2x2 + 1 with a graphing calculator, using the viewing window xmin = −5, xmax = 5, ymin = −1, ymax = 20.
c. Compare the graphs in parts (a) and (b).
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