At a school there are two sections of algebra i for students in the 9th grade. the two classes have different teachers. the principal is interested in gauging the effectiveness of two different teaching methods and asks each teacher to try one of the methods. at the end of the semester both classes are given the same test and the results are compared. in this experiment, which is the variable of interest?
the two different teaching methods
the two different class test results
the two different math classes
the two different math teachers

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

b

step-by-step explanation:

correct choice is a

step-by-step explanation:

the equation of the line passing through the points and is

thus, the equation of the line that passes through the points (0, -6) and (-3, 0) is