Suppose we want to know its slope at the point X Y 3 13. Substitute the x value in the derivative to find the slope. Use one of the points It doesnt matter which point you choose either one will work.
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First subtract 8 from both sides to get 4y 6x 10. The equation can be in any form as long as its linear and and you can find the slope and y-intercept. Identify a point where you want to calculate the slope. It looks like a curve in a graph and has a variable slope value.