To find: the quadratic function represent by the graph.
Answer to Problem 60E
Explanation of Solution
Given information: graph
To find the quadratic function for given graph, use with 3 points on the curve to form 3 equation, and solve them to get required result,
Here 3 points are given,
Consider A(6,0), B(10,0), C(8,−2), find the quadratic function using system of equations method,
The general form of quadratic function,
Substitute A(6,0), in the quadratic function,
Substitute B(10,0), in the quadratic function,
Substitute C(8,−2) in the quadratic function,
Therefore from all the three equation solve the value of a, b, c.
From the equation (1), (2) and (3),
We get,
The value of a, b and c substitute in standard equation of quadratic equation,
This is the required quadratic function.
Chapter 8 Solutions
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