Finding the Equation of a Line from a Graph

What is the formula for the slope-intercept form of a linear equation?

• Y = B + MX

• Y = M + BX

• Y = MX + B

• Y = X + MB

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CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

In the slope-intercept form, what does the 'm' represent?

• The y-intercept

• The x-intercept

• The constant term

• The slope

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CCSS.HSS.ID.C.7

Where does the y-intercept occur on a graph?

• At the origin

• At any point on the line

• Where the line crosses the y-axis

• Where the line crosses the x-axis

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.C.7

What is the y-intercept of the red graph?

• 3

• 2

• 0

• -2

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.C.7

How do you calculate the slope of a line?

• Difference of x and y

• Sum of x and y

• Rise over run

• Run over rise

If a line rises by 2 units and runs by 3 units, what is its slope?

• 3/1

• 1/2

• 2/3

• 3/2

What is the equation of the line for the first example?

• Y = 2/3x + 2

• Y = 3x + 2/3

• Y = 3/2x + 2

• Y = 2x + 3

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

What is the slope of the blue graph in the second example?

• 3/4

• 4/3

• -3/4

• -4/3

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CCSS.HSS.ID.C.7

What is the y-intercept of the blue graph?

• 2

• -3

• -2

• 3

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.C.7

What is the equation of the line for the third example?

• Y = 5/2x - 2

• Y = 5/2x + 2

• Y = 2/5x + 2

• Y = 2/5x - 2

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.LE.A.2