Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
1. The Pythagorean Theorem
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Exercise 48 Page 618

Make a table of values and connect the points with a parabola.

Practice makes perfect
We want to graph the given quadratic function. y=x^2-1

To do so, we will first make a table of values.

x x^2-1 y=x^2-1
0 ( 0)^2-1 - 1
1 ( 1)^2-1 0
2 ( 2)^2-1 3

Note that since the given function has the form y=x^2+c, the axis of symmetry is the vertical line x= 0. Now, let's plot the obtained points and their reflections across the axis of symmetry. Then we can connect them with a parabola.