y = mx + c
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Rearranging Equations into y = mx + c
- Straight line: y = 2 + 3x, Rearranged: y = 3x + 2 (m = 3, c = 2) - Straight line: x - y = 0, Rearranged: y = x + 0 ( m = 1, c = 0
The use of y = mx + c
- The most straightforward way of dealing with straight line equations - 'M' = the gradient of the line - 'C' = 'y-intercept'
Finding the Equation of a Straight-Line Graph
Find the equation of the line on the graph in the form y = mx +c 1. Find 'm' and 'c'. 'M' = 15/30 = 1/2. 'C' = 15 2. Use these to write the equation in the form y = mx + c. Y = 1/2x + 15
