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zarkam21 (zarkam21):
OpenStudy (agent0smith):
Which one has a slope of -2 and a y-int. of 3?
OpenStudy (mathstudent55):
|dw:1466632076831:dw|
OpenStudy (mathstudent55):
|dw:1466632154779:dw|
OpenStudy (mathstudent55):
The slope-intercept form of the equation of a line is
\(y = mx + b\)
where m = slope, and b = y-intercept.
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OpenStudy (mathstudent55):
Using the above information, you should be able to answer the questions.
zarkam21 (zarkam21):
D?
OpenStudy (agent0smith):
D has a y-int. of 3.
Use the given points to work out what the slope it.
OpenStudy (agent0smith):
Use the slope formula, you've seen it before.
OpenStudy (mathmale):
Please show your work; that way others can give you more pointed and helpful info.
Given y = -2x + 3, we should see immediately that the slope is -2 and the y-intercept is +3. Again, match up this info with one of the four given graphs.
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zarkam21 (zarkam21):
B?
zarkam21 (zarkam21):
@agent0smith
zarkam21 (zarkam21):
@jhonyy9
OpenStudy (agent0smith):
B also has a y-int. of 3.
Use the given points to work out what the slope is.