The sum of S of the first N. positive integers is s=1/2n (n+1). a) Plot four points (n, s) that satisfy the equation . is the equation a linear equation? explain your reasoning?
B) Does the value n=4.2 make sense in the context of the problem explain your reasoning.

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:

1 a and 2 b

hope this

if i read it right the answer would me 10

step-by-step explanation:

20*5=100/10-10