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Find the Equation of a Straight Line given the graph

https://youtu.be/i_2vSTT4ZAM


The main idea behind finding the equation of a straight line is centered around finding the gradient and y-intercept.


We have to remember the concept of a gradient is found by finding the change in y divided by the change in x. Its a rate of change of the y values wrt the x values. Some use the method of rise over run too or rise/run. Keep in mind that checking that your answers are correct, especially knowing that when a graph slope right it is positive, and the left will be negative.


The word intercept means to cut/meet at a point. So y-intercepts meet at the y-axis/cut the y-axis. This is drawn straight from a straight line equation (look for the term without "x" or the constant/number).

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Hi/Kia Ora I will be running a Maths Holiday Program Online during the second week(24th to 30th April) of the upcoming school holiday. It will be a single 2-hour session for the week. The session will