How do we read a graph on a coordinate grid?
The Grid's Address Book
How do we read a graph on a coordinate grid?
A graph looks like a quiet little neighborhood drawn on graph paper. But every dot on it is actually a tiny home with an address — and once you can read addresses, you can find anyone. So let's learn to read the streets.
Two thick lines run through the middle and cross like a plus sign. The one lying down flat is the x-axis. The one standing up tall is the y-axis. Where they meet — that crossing spot — is home base, called the origin.
