Given the slope 4/3 of a line and a point (-4,-4) on that line, which of the following is also a point on the line?
a) (-2, 0)
b) (0,2)
c) (2,4)
d) (3,3)

answer:

c

step-by-step explanation:

i'm pretty sure it is c

2500

step-by-step explanation:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb