CCA 6-50 Student eTool | Desmos

a. Mark the residuals on the scatterplot you created in problem 6-48. If you want to purchase an inexpensive pizza, should you go to a store with a positive or negative residual?

4

b. What is the sum of the residuals? Are you surprised at this result?

5

c. Your teacher will show you how to make a residual plot using your calculator, with the x-axis representing the number of pizza toppings, and the y-axis representing the residuals. Interpret the scatter of the points on the residual plot. Is a linear model a good fit for the data?

6

HINT: For the LSRL, check line 8 below. For more help go to: https://www.desmos.com/calculator?tour=regressions

7

Expression 8: "y" Subscript, 1 , Baseline tilde "m" "x" Subscript, 1 , Baseline plus "b"

8

9

powered by

powered by

to save your graphs!

New Blank Graph

Examples

Lines: Slope Intercept Form

example

Lines: Point Slope Form

example

Lines: Two Point Form

example

Parabolas: Standard Form

example

Parabolas: Vertex Form

example

Parabolas: Standard Form + Tangent

example

Trigonometry: Period and Amplitude

example

Trigonometry: Phase

example

Trigonometry: Wave Interference

example

Trigonometry: Unit Circle

example

Conic Sections: Circle

example

Conic Sections: Parabola and Focus

example

Conic Sections: Ellipse with Foci

example

Conic Sections: Hyperbola

example

Polar: Rose

example

Polar: Logarithmic Spiral

example

Polar: Limacon

example

Polar: Conic Sections

example

Parametric: Introduction

example

Parametric: Cycloid

example

Transformations: Translating a Function

example

Transformations: Scaling a Function

example

Transformations: Inverse of a Function

example

Statistics: Linear Regression

example

Statistics: Anscombe's Quartet

example

Statistics: 4th Order Polynomial

example

Lists: Family of sin Curves

example

Lists: Curve Stitching

example

Lists: Plotting a List of Points

example

Calculus: Derivatives

example

Calculus: Secant Line

example

Calculus: Tangent Line

example

Calculus: Taylor Expansion of sin(x)

example

Calculus: Integrals

example

Calculus: Integral with adjustable bounds

example

Calculus: Fundamental Theorem of Calculus

example

Terms of Service|Privacy Policy