To predict: Whether the graph open upward or downward.
Answer to Problem 1QR
The graph opens downward.
Explanation of Solution
Given Information: The equation of the quadratic function is
Calculation:
Consider the equation
The equation represents a parabola. The sign of the coefficient of the variable of highest order tells whether the parabola opens upwards or downwards.
Here, since the coefficient of
The graph of the equation is,
Conclusion:
The graph opens downward.
Chapter 3 Solutions
Calculus: Graphical, Numerical, Algebraic: Solutions Manual
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