Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
1. Quadratic Graphs and Their Properties
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Exercise 23 Page 550

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

Graph:

Practice makes perfect
We want to graph the given quadratic function. f(x)=- x^2-3

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

x - x^2-3 f(x)=- x^2-3
0 - ( 0)^2-3 -3
2 - ( 2)^2-3 - 7
4 - ( 4)^2-3 - 19

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.