Math Tutoring on Determining Linear Equations of Lines in Slope-intercept Form
A linear function is given by y = mx + b, or f(x) = mx + b. This graph is a straight line, with a slope equal to m, and crossing the y-axis at (0, b). The point (0, b) is called the y-intercept.
So to summarize, you get two key components from a line in this form. Here m is equal to the slope; b is equal to the y-intercept.
Let us take a look at our formal definition: y = mx + b is called slope intercept equation of a line, where m is the slope, where, m > 0 → Increasing, m < 0 → Decreasing, m = 0 → Horizontal, m is undefined → Vertical.
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1. How can you use data to form an equation in slope intercept form?
2. How can you predict the graph to be increasing, decreasing, horizontal or vertical?
3. What is a slope?
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