Question

the function ( f(x)=\frac{6.5x^{2}-63.8x + 2102}{x^{2}+324}) models the ph level, ( f(x)), of a mouth ( x) minutes after eating food containing sugar. the graph of this function is shown to the right. complete parts (a) through (e).
a. use the graph to obtain a reasonable estimate, to the nearest tenth, of the ph level of the human mouth 10 minutes after a person eats food containing sugar.
the ph level after 10 minutes is (round to the nearest tenth as needed.)

Explanation:

Step1: Locate x = 10 on x - axis

Find the value of x = 10 on the horizontal axis of the graph.

Step2: Read corresponding y - value

Move vertically from x = 10 until intersecting the graph, then move horizontally to read the y - value on the vertical axis.

Answer:

5.5 (estimated value from the graph to the nearest tenth)