Find the Line from a Point and the Slope

Find the slope of the line that passes through (17, 2) and (17, -3).

• 0

• undefined

• 5

• -5

Tags

CCSS.8.EE.B.5

Which of the following could be a possible line of best fit for the data?

• y = -5/2x + 20

• y = -x + 19

• y = x + 20

• y = 2/3x + 15

Suppose a LINE OF BEST FIT passes through the points (4, 8) and (6, 2). The SLOPE of this line is . . .?

• -3

• -6

• 4

• 2

Tags

CCSS.8.EE.B.5

Suppose a LINE OF BEST FIT passes through the points (6, 34) and (8, 50). The EQUATION of this line is . . .? (hint: find the slope and the equation in point-slope form. THEN put it into slope-intercept form)

• y = 8x – 5

• y = 2x

• y = 2x + 7

• y = 8x – 14

The scatterplot shows data collected from 9 people about how much money they earned based on the hours they worked. Use 2 points on the line of best fit and find the slope.

Tags

CCSS.8.EE.B.5

Using your slope from the previous question, give the equation for the line of best fit in point-slope form (choose 1 of the 2 points you used to find the slope)

Change your equation from point-slope form to slope-intercept form

The Y-INTERCEPT of this line is . . .? (hint: find the equation in point-slope form first and then put it into slope-intercept form)

• 11

• 4

• 9

• 20

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Find the y-intercept of the line that passes through the given point and has the given slope:
 (-2, -1); m= -3

• b = -6

• b = -7

• b = 6

• b = 7

Find the slope of the line below using rise/run.

• 3

Tags

CCSS.8.EE.B.5