

Step 4: Join the points from Step 1 and Step 2 by a line and extend the line on both sides.Here, we go up by 3 units from the y-intercept and thereby go right by 1 unit. Also, if "run" is positive", we go right and if "run" is negative, we go left.) (Note that if "rise" is positive, we go up and if "rise" is negative, we go down. Step 3: Rise the y-intercept vertically by "rise" and then run horizontally by "run".Step 2: Write the slope as the fraction rise/run and identify the "rise" and the "run".Its slope is, m = 3 and its y-intercept is (0, b) = (0, 5). The process is explained again by graphing the same linear function f(x) = 3x + 5. To graph a linear function, f(x) = mx + b, we can use its slope 'm' and the y-intercept 'b'. Graphing a Linear Function Using Slope and y-Intercept Step 3: Plot the points on the graph and join them by a line.Therefore, two points on the line are (-1, 2) and (0, 5). Here is the table of the linear function y = 3x + 5. Step 2: Substitute each of these values in the function to find the corresponding y-values.Step 1: Find two points on the line by taking some random values.The process is explained with an example where we are going to graph the function f(x) = 3x + 5. To find any two points on a linear function (line) f(x) = mx + b, we just assume some random values for 'x' and substitute these values in the function to find the corresponding values for y. Graphing a Linear Function by Finding Two Points There are two ways to graph a linear function.

The graph of a linear function f(x) = mx + b is If we find two points, then we can just join them by a line and extend it on both sides. We know that to graph a line, we just need any two points on it. Therefore, the equation of the linear function is, f(x) = 4x + 19. Step 2: Find the equation of linear function using the point slope form. Step 1: Find the slope of the function using the slope formula: The process of finding a linear function is the same as the process of finding the equation of a line and is explained with an example.Įxample: Find the linear function that has two points (-1, 15) and (2, 27) on it.

We use the slope-intercept form or the point-slope form to find a linear function.

#LINEAR FUNCTION GRAPH MOVIE#
