Determining the Equation of a Line from Two Points

What is the main topic of this lesson?

• Factoring polynomials

• Solving quadratic equations

• Graphing parabolas

• Finding the equation of a line given two points

Tags

CCSS.HSA-REI.B.4B

Which form is used to find the equation of a line when given a point and a slope?

• Slope-intercept form

• Quadratic form

• Standard form

• Point-slope form

How do you plot a point on a graph using point-slope form?

• Plot the y-intercept and use the slope to find other points

• Plot any random point and draw a line

• Plot the given point and use the slope to find other points

• Plot the x-intercept and use the slope to find other points

What is the slope of a horizontal line?

• Negative

• Positive

• Zero

• Undefined

Tags

CCSS.8.EE.B.5

How do you write the equation of a line with a slope of zero passing through a point?

• y = mx + b

• y = 0

• y = c

• y = 1

What is the general form of the point-slope equation?

• y = x + c

• ax + by = c

• y = mx + b

• y - y1 = m(x - x1)

When writing the equation of a line in point-slope form, what should be plugged in for y?

• The slope

• The y-coordinate of the point

• The y-intercept

• The x-coordinate of the point

How do you find the slope between two points?

• Add the y-coordinates and divide by the x-coordinates

• Add the x-coordinates and divide by the y-coordinates

• Subtract the y-coordinates and divide by the x-coordinates

• Subtract the x-coordinates and divide by the y-coordinates

Tags

CCSS.8.EE.B.5

What is the slope of the line passing through the points (2, 3) and (7, 4)?

• 7/5

• 4/7

• 5/7

• 1/5

Tags

CCSS.8.EE.B.5

If Trevor loses 4 points per minute in a game, what is the equation representing his points over time?

• y = -3x + 4

• y = 4x + 3

• y = -4x + 3

• y = 3x - 4

Tags

CCSS.HSF.LE.A.2

CCSS.8.F.B.4