  PRE-ALGEBRA
ALGEBRA 1
GEOMETRY
ALGEBRA 2
TRIGONOMETRY
PRE-CALCULUS
CALCULUS    Pre-Calculus, 9th edition PAGE: 159 SET: Exercises PROBLEM: 36
Please look in your text book for this problem Statement  The revenue function is .

(a).

At what price ,the revenue is zero.

Therefore  ball will strike the ground at distance Substitute in .    or .

The revenue is zero where price is \$ and \$ . (b).

The revenue  is\$ .

Therefore substitute in .  Find the vertex of above quadratic function . Compare it to . , and .

Since , then the parabola open upward.   coordinate of vertex is     Vertex  Graph:

Graph the quadratic equation Draw the coordinate plane.

Plot the intercepts and vertex.

Connect the plotted points. observe the graph:

The price is in between \$ and \$ .

Hence . (a).The price is \$ and \$ .

(b). . TESTIMONIALS
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