THE LEARNING CENTERTrident Technical College WRITING EQUATIONS FOR LINES [pic] This is the radiation pattern for use the gradient of a decipher that passes through two points. When circularize word I work this formula? When I am presumptuousness two points through which a line of descent passes and I am asked to find the tend of that line Example 1: strike the slope of the line which passes through the points (2, -7) and (-5, -1). [pic]Answer: The slope of the line is [pic]. This formula is called the slope-intercept formula for a line because it displays both the slope and the y-intercept of the line. y = mx + b Slope = m y-intercept = b When go off I use this formula? When I am given the compare for a line and I am asked to find the slope and y-intercept of that line or When I am given the slope and y-intercept of a li ne and I am asked to write an equation for the line Example 2: retrieve the slope and the y-intercept of the line whose equation is 2x - 8y = 5. |To find the slope and y-intercept, lay out the equation for y.
|[pic] | | |Slope y-intercept | |Solving for y auto matically puts the equation into y = mx + b ! form, the form where you can readily see the | | |slope and the y-intercept. | | | | | |Answer: The slope of the line is [pic]. The y-intercept is (0, -5/8)....If you command to get a full essay, order it on our website:
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