A. Find the slope of the line. Explain or show your reasoning. b. Point a is located at (4,6). Is it on the line? Explain how you know.
c. Point b is at (6,9). Is it on the line? Explain how you know.
d. What is the y-coordinate when x=0? Explain or show your reasoning. Entregar

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.

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

well, because the $0.25 is an added cost depending on how many minutes, the answer would be y = 30 + 0.25x.