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Erik Skyllberg NEG 2003-04-03 Math assignment Families of Functions Linear Function: A linear function is formed by the slope-intercept form y = mx + b, where m is the gradient/slope, and b is the y-intercept. The greater gradient, the steeper the line will be. The gradient can be calculated through taking ?y/?x. Then you will have to use two points on each line. The y-intercept of my first linear function graph, the red line, is 2, due to that b = 2. The gradient is + 3, which also can be written 3/1. To find out that, it is possible to use the rise/run method. That means that you already know one point on the graph, the y-intercept + 2. From that point you can go upwards (rise) three units, and one unit to the right (run). You could also use the ?y/?x method to calculate the gradient. Then you take two co-ordinates on the...

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