Question

cherry

不好意思想問題目是什麼意思，如果是畫圖找切線為什麼會給兩個x值，想知道第一題怎麼寫，附答案

Exercises 2.7
Answers to selected odd-numbered problems begin on pa
Fundamentals
In Problems 1-6, sketch the graph of the function and the tan-
gent line at the given point. Find the slope of the secant line
through the points that correspond to the indicated values of x.
1. f(x) = -x2 + 9, (2, 5); x = 2, x = 2.5
(
2,5=
=

Exercises 2.7, Page 116
1. -4.5;
y
x