Question

QUESTION 21

A linear model is found to be y = 3.5x + 6. At a value of x = 4, the equation yields y = 20. However, the actual data value for x =4 is found to be y = 22.3. The residual at x = 20 is

	a.	3.5
	b.	6
	c.	20
	d.	22.3
	e.	2.3

QUESTION 22

A regression equation is found to be y=2x+10. The prediction for the dependent variable when the independent variable is 5 would be

	a.	-2.5
	b.	2.5
	c.	-20
	d.	20

QUESTION 23

The y-intercept, to the nearest hundredth, of the line 4x + (1)y = 3 is

QUESTION 24

A line contains two points: (10, -3) and (6, -4). What, to the nearest hundredth, is the slope of this line?

QUESTION 25

Given the linear model -8x + 7y = 9, what value of y is predicted when x=-4? Round to the nearest hundredth.

QUESTION 26

:

The following linear model is created: y = 5x+15. What is the predicted value of the dependent variable when the independent variable has a value of 1.4?

QUESTION 27

The slope, to the nearest hundredth, of the line 4x + (-5)y = -3 is

QUESTION 28

Given the linear model y = 2x + 12 , find the residual when x=9 and the actually data point is found to be (9, 36). Round to the nearest hundredth.

QUESTION 29

Given the linear model -3x - 11y = -(-8), what value of y is predicted when x=4? Round to the nearest hundredth.

QUESTION 30

Given the linear model -8x - 10y = -(6), the "Fit" when x=-9 would be...? Round to the nearest hundredth.

QUESTION 31

Given the linear model -4x - 8y + -7 = 0, find the residual when x=-9 and the actually data point is found to be (-9, 8). Round to the nearest hundredth.

Answer 1