Question

which of the lines in the following graph appear to be tangent lines? why or why not? which of the lines in the following graph appear to be tangent lines? select all that apply a. l3 b. l6 c. l1 d. l4 e. l5 f. l2

Explanation:

Step1: Recall tangent - line definition

A tangent line touches a curve at exactly one point.

Step2: Analyze each line

$L_1$ intersects at two points. $L_2$ touches at one point. $L_3$ touches at one point. $L_4$ touches at one point. $L_5$ touches at one point. $L_6$ intersects at two points.

Answer:

A. $L_3$
D. $L_4$
E. $L_5$
F. $L_2$