Regression Notes Quiz

What is the equation for a linear function as mentioned in the learning material?

• y = ab^x

• y = mx + b

• y = ax² + bx + c

• y₁ ~ ax²₁ + bx₁ + c

Which type of function is represented by the equation y = ax² + bx + c?

• Linear

• Exponential

• Quadratic

• None of the above

On the STAAR Reference Sheet, which form of the quadratic equation is provided?

• Slope-intercept form

• Standard form

• Logarithmic form

• Vertex form

What is the first step to perform a regression on Desmos according to the document?

• Write the correct regression equation

• Add x and y-values to your table

• Create a table

• Discuss pattern for regression

What is the regression equation for an exponential function as per the learning material?

• y₁ ~ mx₁ + b

• y₁ ~ ab^x₁

• y₁ ~ ax²₁ + bx₁ + c

• y = mx + b

Which of the following is the correct regression equation for a quadratic function?

• y₁ ~ mx₁ + b

• y₁ ~ ab^x₁

• y₁ ~ ax²₁ + bx₁ + c

• y = mx + b

Which function best models the depth of a person from the surface of the water after x seconds?

• y = 0.05x² + 0.74x

• y = 0.05x² + 0.74 + 9.17

• y = 0.26x² – 3.11x

• y = 0.26x²–3.11x + 1

Which function best models the growth of plants in cm, y, over x weeks since the seeds were planted?

• y = 3.03x – 0.75

• y = 3.03x + 0.284

• y = –0.75x + 3.03

• y = –3.03x + 0.75

Which function best models the net revenue in thousands of dollars of a boba shop every three months for two years?

• y = 28.91(1.18)^x

• y = 1.18(28.91)^x

• y = 2,413.59(0.82)^x

• y = 0.82(2,413.59)^x

What is the relationship being investigated in the example provided in the learning material?

• The relationship between diet and sleep duration

• The relationship between exercise and alertness level

• The relationship between sleep duration and alertness level

• The relationship between work hours and stress level