Writing Linear Equations Given Two Points

What is the equation of the line passing through the points (2, –1) and (5, –10) in slope-intercept form?

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Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

What method can be used to write the equation of a line in slope-intercept form given two points?

• Find the slope using the formula m= y2-y1/x2-x1 and then substitute one point and the slope into the equation y=mx+b to find the y-intercept

• Find the slope using the formula m= x2-x1/y2-y1 and then substitute one point and the slope into the equation y=mx+b to find the y-intercept

• Find the y-intercept using the formula m= y2-y1/x2-x1 and then substitute one point and the slope into the equation y=mx+b to find the slope

• Find the y-intercept using the formula m= x2-x1/y2-y1 and then substitute one point and the slope into the equation y=mx+b to find the slope

What is the equation of the line passing through the points (2/5, 9/20) and (1/3, 11/12) in slope-intercept form?

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Tags

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Which line has an equation of y= -5x+4 in slope intercept form?

• a line passing through the points (1, 9) and (3, 19)

• a line passing through the points (2, –14) and (4, –24)

• a line passing through the points (1, 1) and (3, 11)

• a line passing through the points (2, –6) and (4, –16)

Tags

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

What is the equation of the line passing through the points (–25, 50) and (25, 50) in slope-intercept form?

• y = -50x

• y = -50

• y = 50x

• y = 50

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

What is the slope-intercept form of a line that passes through points (2, 11) and (4, 17)?

• $y=-3x-5$

• $y=3x-5$

• $y=-3x+5$

• $y=3x+5$

Tags

CCSS.HSA.CED.A.2

Which is a characteristic of the line that passes through the points (6, 10) and (12, 7)?

• The slope is 1/2

• The slope is -2

• The y-intercept is 7.

• The y-intercept is 13.

Tags

CCSS.HSS.ID.C.7

Vladimir says that the equation of the line that passes through points (-5, -3) and (10,9) is y= 4/5x+1. Robyn says that the line passes through the points (-10, -7) and (-15, -11). Who is correct?

• only Vladimir

• only Robyn

• both Vladimir and Robyn

• neither Vladimir nor Robyn

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Which equation represents the line that passes through the points (–3, 7) and (9, –1)?

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Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

What is the equation of the line that passes through the points (15,9) and (-2,9)?

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3