Finding Slopes from Two Lines

Which of the following equations is written in Point-Slope form?

• y - 3 = 5(x - 2)

• 1/3 x + 2y = 5

• y = -7x + 10

• 2y + 7x = 18

What method is best for finding the slope of a graph?

• slope formula

• Draw triangle - rise over run

• Change in y over change in x

• find two points

What method is best for finding the slope of a line given two coordinate points?

• slope formula

• draw triangle - rise over run

• Change in y over Change in x

• find two points

What method is best for finding slope when given a table of values?

• slope formula

• draw triangle - rise over run

• change in Y over Change in x

• find two points

Find the slope of the line.

• -5/4

• 5/4

• -4/5

• 4/5

The slope of the line is: ​ (a)  

The perpendicular slope will be ​ (b)  

• undefined

Parallel lines have what in common?

• Same y-intercept

• Same slopes

• Slopes are opposites

• Intersect at y-intercepts

How can you tell if two lines are perpendicular?

• Slopes are opposites

• Slopes are the same

• Slopes are opposite reciprocals

• They intersect

Which of the following lines is perpendicular to y = 2/3 x + 7?

• y = -3/2 x - 5

• y = - 2/3 x + 8

• y = 3/2 x - 12

• y = 2/3 x + 3

Which of the following equations is written in Slope-Intercept form?

• 2x + 3y = 8

• 2y = 5x + 9

• y = 1/2 x - 7

• y - 3= 2(x + 5)