Big Ideas Math Integrated I, 2016
BI
Big Ideas Math Integrated I, 2016 View details
1. Points, Lines, and Planes
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Exercise 18 Page 384

For line m to intersect plane K at every point on m, the line must be contained in plane K.

Example Solution:

Practice makes perfect

Let's first sketch an arbitrary plane K.

For line m to intersect plane K at every point on m, every point on m must lie in plane K. Thus, line m must be contained in plane K. In other words, it must lie flat on the plane.