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Pearson Algebra 1 Common Core, 2011 View details

2. Quadratic Functions

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Exercise 44 Page 558

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

Graph:

Practice makes perfect

We want to graph the given quadratic function. y=2x^2+7To do so, we will first make a table of values.

x	2x^2+7	y=2x^2+7
0	2( 0)^2+7	7
1	2( 1)^2+7	9
2	2( 2)^2+7	15

Note that since the given function has the form y=ax^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.