The expression \dfrac12bh
2
1
bhstart fraction, 1, divided by, 2, end fraction, b, h gives the area of a triangle where bbb is the base of the triangle and hhh is the height of the triangle.
what is the area of a triangle with a base of 7 \text{ cm}7 cm7, space, c, m and a height of 4 \text{ cm}4 cm4, space, c, m?

The change in water level of a lake is modeled by a polynomial function, w(x). described how to find the x-intercepts of w(x) and how to construct a rough graph of w(x) so that the parks department can predict when there will be no chage in the water level. you may create a sample polynomial of degree 3 or higher to use in your explanations.