Let x1, x2, x3, x4, x5 be the scores for the five tests respectively and y be the average score of those tests.
y = (x1 + x2 + x3 + x4 + x5) / 5
since y = 85:
(x1 + x2 + x3 + x4 + x5) / 5 = 85
Angle KJL and Angle IJL are supplementary angles
Supplementary angles are angles that add up to 180 degrees
If it is perpendicular to the line 14x-7y=4, then we know our line has the opposite and inverse slope of that line. Solving for y of the first line, we get y=2x-(4/7). All we care about is the coefficient of the x term, because that will give us our slope. The slope of the first line is 2, so the slope of out line is the opposite and inverse of that slope, which -(1/2).
Plugging into our slope- point formula, where y1=(-9), x1=2, and m=(-1/2), then:
y-(-9)=(-1/2)(x-2)
y+9=(-1/2)x+1
y=(-1/2)x-8
Sadly, the cube you promised us is not shown.
IF the cube is resting on the table in the normal way ... with
two of its faces horizontal and the other four faces vertical,
then any horizontal or vertical slice is a square.
You know what's fun ? Try doing this problem with cubes of
chocolate cake, and after you make slices, look at them and
then eat them.
Function B has a rate of change ( or slope) of 11-5 / 3-1 = 6/2 = 3
Function L y = 6x + 4 has a rate of change of 6 . Higher than function B.
To find y intercept of function B;
y = 3x + b where b = y intercept, when x = -3 y = -7 so
-7 = 3(-3) + b giving b = 2
y intercept of Function B is 2 and of function L it is 4
L has greatest y intercept
