The equation of a line with slope (-1) and y-intercept (4) is found using: y -x + 4. Evaluate the numerator and denominator to find the delta of x and y. Start with the slope formula: m (y 2 y 1) (x 2 x 1) Replace the x and y values with the x and y coordinates values. Slope Intercept Form Examples Some examples of the slope intercept form are shown here. For example, let’s find the slope of a line that passes through points (3,2) and (11,8). a, b and c can be entered as integers, fractions or numbers with a decimal point as shown below.įor lines of the form ax = c (b = 0), the slope is undefined. The slope intercept form equation for a straight line with a slope, 'm', and 'b' as the y-intercept can be given as: y mx + b. Use Slope Intercept Form of a Line Calculatorġ - Enter the coefficients a, b and c and press "Slope Intercept Form". Draw dots on the graph to represent these points, and note their coordinates. This can easily be done using the below formula: INTERCEPT (B2:B11,A2:A11) With this, our equation for this dataset becomes: Y 138.56X + 65803.2. x and y pairs are line coordinates (x, y). The importance of the slope intercept form of a line lies in the fact that the slope m and the y intercept B of the line are easily identified and here are the steps to follow:ġ) Solve the general equation a x + b y = c for yįor b not equal to zero, we divide all terms by the coefficient b.Ģ) Compare the above equation to the slope intercept form y = m x + B and identify m and B asįind slope and the y intercept of the line given by the equation 2 y + 3 x = 6Ĭompare the above equation to the slope intercept for y = m x + B to find While we know the slope, we would also need to know the intercept value to make sure we can calculate Y values for any X value. The slope intercept equation uses the following format: y mx + b. Into the slope intercept form y = m x + B. This online calculator rewrites an equation of a line of the general form Slope Intercept Form of a Line - Calculator
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