Concept explainers
For Exercises 7–14,
a. Determine whether the graph of the parabola opens upward or downward.
b. Identify the vertex.
c. Determine the x -intercept(s).
d. Determine the y -intercept.
e. Sketch the function.
f. Determine the axis of symmetry.
g. Determine the minimum or maximum value of the function.
h. Write the domain and range in interval notation. (See Example 1 )
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College Algebra (Collegiate Math)
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