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http://prntscr.com/… - QuestionCove
OpenStudy (gokuporter):

http://prntscr.com/crihaf I forgot how to do this.

1 year ago
OpenStudy (mrnood):

FIRST: what is the slope of the solid line (it is simple - take the two endpoints from the graph and use delta y/delta x)

1 year ago
OpenStudy (mrnood):

If you take the points I suggest tehn the answer is immediately evident (it is simple - take the two endpoints from the graph and use delta y/delta x)

1 year ago
OpenStudy (tkhunny):

There is insufficient information. Your visual assumption of the points the line passes through hardly constitutes evidence of the actual points on the line.

1 year ago
OpenStudy (mhchen):

Actually, based on the graph, you can see the intersection points. So you can find the slope, the y-intercept, and basically the equation of both lines,

1 year ago
OpenStudy (danjs):

To get the line equation, you need a point on the line and the direction of the line. Or, 2 points on the line. I would use points where the line goes through a cross in the gridlines and assume it is exactly over the gridline cross. Some points on the line are (x,y) (-2 , 5) (0 , 4) (2, 3) (4,2) You can use any 2 to get an equation.

1 year ago
OpenStudy (mathmale):

@Gokuporter: Please become involved in this discussion. What do you understand, and what do you not understand?

1 year ago
OpenStudy (tkhunny):

@mhchen Actually, you are only assuming you see it as it is. |dw:1476055467731:dw| It's a right triangle because it is DEFINED to be so. Visual appearance is NOT significant.

1 year ago