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Mathematics 8 Online
OpenStudy (anonymous):

What is the slope and y-intercept of the equation represented by the following graph?

OpenStudy (anonymous):

A. slope = 2, y-intercept = -1/2 B. slope = -2, y-intercept = -1/2 C. slope = -1/2 , y-intercept = 2 D. slope = 1/2 , y-intercept = 2 E. slope = -1, y-intercept = 2

OpenStudy (jack1):

y intercept = where does the line cross the y axis? @AnonymousBella

OpenStudy (jack1):

y intercept = where does the diagonal line cross the y axis? @AnonymousBella ?

OpenStudy (anonymous):

2

OpenStudy (jack1):

yep

OpenStudy (jack1):

slope = rise over run so going from left to right, is the line "uphill" or "downhill" ?

OpenStudy (anonymous):

downhill?

OpenStudy (jack1):

yep, so the slope will be a negative number, as it's "downhill"

OpenStudy (jack1):

so not A, (wrong y intercept) not B, (wrong y intercept) not D (wrong slope) must be C or E

OpenStudy (anonymous):

C?

OpenStudy (jack1):

slope = rise over run =(y2 - y1)/(x2-x1)

OpenStudy (jack1):

|dw:1385116133435:dw|

OpenStudy (jack1):

|dw:1385116163115:dw|

OpenStudy (jack1):

|dw:1385116249160:dw| can you solve from here? @AnonymousBella ? using \[\huge slope = \frac { y_2 - y_1}{ x_2 - x_1}\]

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