The straight line through two points will have an equation in the form \(y = mx + c\). We can find the value of \(m\), the gradient of the line, by forming a right-angled triangle using the ...
The straight line through two points will have an equation in the form \(y = mx + c\). Then, we can find the value of \(c\), the \(y\)-intercept, by substituting the coordinates of one point into ...
This case involves the use of the two-point formula. Since the slope of a linear function is the same at any point on the line we may set an expression for the value of the slope at one point equal to ...