What is the significance of a correlation coefficient of -0.97? A. The points all lie very close to the line of fit, and the
line is decreasing.

B. The points all lie very close to the line of fit, and the
line is increasing.

C. The points do not follow the line of fit and, the line is
decreasing.

D. The points do not follow the line of fit, and the line is
increasing.

It's A. The points all lie very close to the line of fit, and the line is decreasing.

Step-by-step explanation:

y=1/4x-4

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.