Graph x^2+2
Problem
Solution
Identify the type of function. The equation
y=x2+2 is a quadratic function in the formy=a*x2+c which represents a parabola.Determine the vertex. Since there is no
x term (meaningb=0 , thex coordinate of the vertex is0 Substitutingx=0 into the equation givesy=0+2=2 The vertex is(0,2) Analyze the opening direction. The coefficient of
x2 isa=1 Sincea>0 the parabola opens upward.Find additional points to plot. Choose
x values around the vertex to determine the shape:
Ifx=1 y=1+2=3 Point:(1,3)
Ifx=−1 y=(−1)2+2=3 Point:(−1,3)
Ifx=2 y=2+2=6 Point:(2,6)
Ifx=−2 y=(−2)2+2=6 Point:(−2,6) Sketch the graph. Plot the vertex
(0,2) and the calculated points, then draw a smooth U-shaped curve passing through them.
Final Answer
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