Concept explainers
To find: The time when the marble will hit the ground if the equation of the height is
Answer to Problem 9.14EP
The marble will hit the ground after 2.75 seconds.
Explanation of Solution
Given information:
The given equation of the height is
Calculation:
The given equation is a
Write the standard form of the quadratic equation.
Compare the given equation with the standard form of the quadratic equation.
Write the equation for the axis of the symmetry.
Substitute
So, the equation for the axis of the symmetry is
The vertex is equal to
So, the vertex of the equation is
The y -intercept of the graph of the equation is equal to the value of
Draw the graph of the equation.
From the graph, the graph intersects the x -axis at
Therefore, the marble will hit the ground after 2.75 seconds.
Chapter SH Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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