Concept explainers
To evaluate the y -intercept of the
Answer to Problem 77PFA
The y -intercept is at
Explanation of Solution
Given information :
The quadratic equation is
The graph of a quadratic equation (
This vertex point shall be:
Highest point (if
Or, lowest point (if
In this case, ‘a’ is lesser than 0 hence the graph will have a maximum and will open downwards.
A parabola always points to infinity, either negative or positive. In a quadratic equation signifying parabola, the y -intercept is c.
Here, according to the given quadratic equation
Chapter 9 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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