Parabolas : Intercepts, Vertex and Line of Symmetry

Use f(x)=-2(x+3)^2+4 to find the following values. Round any answers to two decimal places. You must show work for each answer choice or provide justification.

4a. y-intercept as an ordered pair.
4b. Determine the axis of symmetry written as an equation.
4c. Vertex as an ordered pair?
4d. Domain, in interval notation.
4e. Range, in interval notation.
4f. X-intercepts - both exact and approximate values (show all work).

Solution Preview

Use f(x)=-2(x+3)^2+4 to find the following values. Round any answers to two decimal places. You must show work for each answer choice or provide justification.

4a. y-intercept as an ordered pair.

To get y-intercept, we let x=0. So,
...

Solution Summary

Intercepts, vertex and line of symmetry are found for a parabola. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.

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