For the straight line defined by the points (2, 57) and (4, 91) , determine the slope and y-intercept. Do not round the answers.

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D3arnafrilMaryantos D3arnafrilMaryantos

02-09-2016
Mathematics

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For the straight line defined by the points (2, 57) and (4, 91) , determine the slope and y-intercept. Do not round the answers.

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HomertheGenius HomertheGenius · Answer 1 · 2016-09-07T18:52:42+02:00

HomertheGenius HomertheGenius

07-09-2016

The slope :
m = (91 - 57 ) / ( 4 - 2 ) = 34 / 2 = 17
The line: y = m x + b
57 = 2 · 17 + b
57 = 34 + b
b = 57 - 34 = 23
Answer: the slope is 17 and y-intercept is 23.

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