DIscovery - Functions on the Coordinate Plane

Main concept

Functions can be shown on a coordinate plane Inputs x and outputs y are written as points x y The function rule shows the relationship between them

Example question

How far did the car travel in 3.5 hours

Function rule

y = 40x

Substitute

x = 3.5 → y = 40 × 3.5 → y = 140

Answer

The car traveled 140 miles in 3.5 hours

Remember

Ordered pairs are written as x y X is input like time Y is output like distance Always check the rule before substituting

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Discovery Functions on the Coordinate Plane 9 23 25