Maria said the expression - 5n+ 2 + 8n - 9 is equivalent to - 4n. What error did Maria likely make? What error did Maria likely make?
O A. She multiplied all the numbers instead of adding or subtracting.
OB. She did not group like terms correctly. She combined all of the numbers in the expression even tho
they are not all coefficients of n.
OC. She combined only the coefficients of n.
OD. She did not group like terms correctly. She combined only the first two numbers.

mark other person brainliest

the first option is the answer.

let f (x ) is a function and c be a positive real number,   the graph of the function g (x ) = f (cx ) is represented as follows.

when, c > 1,   the function compresses it in the x - direction.

when, 0 < c < 1, the function stretches it.

the function is g ( x ) = (9x )2.

the heighest power of x in g ( x ) = (9x )2 is 2, so the parent function is square function.

the equation of parent function is f ( x ) = x 2 .

the function is g ( x ) = (9x )2 and the parent function is f ( x ) = x 2 .

so, the functions f and g have the following relationship.

g ( x ) = f ( 9x ).

compare the function g ( x ) = f ( 9x ) with g (x ) = f (cx ).

c = 9 ( > 1 ).

so, the function g (x ) = (9x )2 compresses it in the x - direction.

step-by-step explanation: