MA 153 Lesson 28 Outline Quiz Solutions (Practice problems for distance learning students)1. Find the maximum or minimum value (specify whether it is a max or a min): ()223yx=−−5Min value = -5 (It is a min because “a” is positive so parabola opens up and the min/max is the y-coordinate of the vertex. 2. A stone is skipped in the shape of a parabola. During one hop, the stone went a horizontal distance of 6 feet and the maximum height was 4 feet. Find a standard equation of the parabola that fits this information. ()2ya xhk=−+Vertex of our problem is (3,4) so ()234ya x=−+The point (0,0) is on the parabola, so: ()()22003449494349aaayx=−+−== −= −−+Answering of homework questions over lesson 27. Lesson 28 Section 2.7 Inequalities using a sign chart
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