A simple random sample of size n < 30 for a quantitative variable has been obtained. Using the normal probability plot, the
correlation between the variable and expected z-score, and the boxplot, judge whether a t-interval should be constructed.
n = 14; Correlation = 0.956
Expected z-Score
70
80
90
100
110
120
70
80
90
100
110
120
NO
Yes

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

(-5,-28)

i graphed to on desmos.

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

14

step-by-step explanation: