Curve of Best Fit

What is this called?

• A graph

• A scatter plot

• A linear function

• A curve of best fit.

Tags

CCSS.HSS.ID.B.6

Using the curve of best fit, what would be the output (y) when the input (x) is 7?

• 260

• 240

• 140

• 320

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

When using Desmos to find the curve of best fit, what do I need to enter first?

• y₁ ~ ax₁² +bx₁ + c

• the equation

• the table/chart of values

• the vertex

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

When finding the curve of best fit in Desmos, what do I do after I entered my table of coordinates?

• plot the points

• y₁ ~ ax₁ +b

• y₁ ~ ax₁² +bx₁ + c

• do a little dance

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.C.7

If this is an equation for a curve of best fit, find the output (y) when the input (x) is 13:

y = 1.2x² - 3.7x - 19

• -51.5

• 135.7

• 154.7

• 183,8

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

Given the following table of values, which column represents the input (x)?

• Days

• Money

• Both Days and Money

• Neither Days nor Money

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.4

Given the graph, what would be in the output (7) when the input (x) is 6?

• 1125

• 850

• 700

• 600

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

Given the following scatter plot, which equation best models the data?

(Hint: in this specific case, you don't really need Desmos)

• y = -8.25x + 56

• y = -8.25x² + 56x

• y = 8.25x² + 56x

• y = -8.25x³ + 56x

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10