What is the equation in point-slope form of the line given (4, –4) and (9, –1)?
Firstly in this question we would need to find the "slope" or otherwise known as the gradient. we use the formula.
so for this question we get.
now we take a look at our equation for a straight line, which is.
we have now got a value for
to do this, we use the
now all we need to do is insert our value for