Graph y=x^2+5
Problem
Solution
Identify the type of function. The equation
y=x2+5 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=5 The vertex is(0,5) Analyze the direction of opening. The coefficient of
x2 isa=1 Sincea>0 the parabola opens upward.Calculate additional points to define the shape. Choose
x values on either side of the vertex:
Ifx=1 y=(1)2+5=6 Point:(1,6)
Ifx=−1 y=(−1)2+5=6 Point:(−1,6)
Ifx=2 y=(2)2+5=9 Point:(2,9)
Ifx=−2 y=(−2)2+5=9 Point:(−2,9) Plot the points
(0,5) (1,6) (−1,6) (2,9) and(−2,9) on a coordinate plane and connect them with a smooth, U-shaped curve.
Final Answer
To graph
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