Exploring Linear Functions in 8th Grade Math

What is the standard form of the equation y = mx + b?

• mx - y = b

• y = mx - b

• Ax - By = C

• Ax + By = C

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.CED.A.4

What is the function notation for y = mx + b?

• None of the above

• h(x) = b + mx

• g(x) = mx - b

• f(x) = mx + b

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

How do you find the y-intercept from two points on a line?

• Subtract the y-values and divide by the difference in x-values

• None of the above

• Use the slope formula and solve for b

• Multiply the x-values and add the y-values

Tags

CCSS.HSS.ID.C.7

How do you verify the y-intercept found from an equation?

• None of the above

• Calculate the slope again

• Substitute back into the equation

• Plot the graph

Tags

CCSS.HSS.ID.C.7

What does the 'm' in the slope-intercept equation represent?

• X-intercept

• Y-intercept

• Maximum value of y

• Slope of the line

Tags

CCSS.HSS.ID.C.7

What is the slope of a line that passes through points (-4, 1) and (4, 3)?

• -1/4

• 1/2

• -1/2

• 1/4

Tags

CCSS.HSS.ID.C.7

In point-slope form, what does the equation y - y1 = m(x - x1) represent?

• A quadratic function

• A line passing through point (x1, y1) with slope m

• A horizontal line

• A vertical line

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

What is the equation of a line in point-slope form if it passes through the point (3, 1) with a slope of 2?

• y + 3 = 2(x + 1)

• y - 3 = 1(x - 2)

• y - 1 = 2(x - 3)

• y + 1 = 2(x + 3)

Tags

CCSS.HSA.CED.A.2

CCSS.HSG.GPE.B.5

How can you apply linear functions to real-world problems?

• Predict outcomes

• Calculate areas

• Determine volumes

• All of the above

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

CCSS.HSS.ID.C.7

If you start with $20 and save $5 each week, how much will you have after 10 weeks?

• $25

• $50

• $70

• $100

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2