How do I do this problem

Step-by-step explanation:

first of all, it is important to remember that f(x) stands for y, it calculates the y coordinate for a given x coordinate.

so, now, by comparing the two points

(1, 1)

(2, -7)

what do we need to do to f(x) just in the "outside" (without knowing the inner details of f(x)) to create (2, -7) ?

the first thing we see : the negative y (-7).

so, the first transformation is : -f(x)

that would move the point to (1, -1)

because the same point is now suddenly at x=2 (instead of 1), what do we need to do to the argument of 2 to bring it back to the original 1 (so that the original function can be performed on the original x=1) ? we need to subtract 1.

so, after the second transformation we have : -f(x-1)

that would move the point now to (2, -1)

so, the only thing missing is to bring y from -1 to -7. we need to subtract -6 from the original result.

so, after the third transformation we have : -f(x-1) - 6

and that finally moves the original point to (2, -7)

black/brown

step-by-step explanation:

well, you see here, jamal was born to 2 parents, his mother who he lives with and his father who left at a young age and who happens to be younger than him. he stole cookies because he has to steal food due to the fact that he spends his government poverty checks on pot and women.

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240