Which first step for solving the given system using substitution results in an equation without fractions 3x + y = 9
5x-3y=1

Slove for x in the first equation
Solve for y in the first equation
Solve for x in the second equation
Solve for y in the second equation

Solve for x in the second equation.

Step-by-step explanation:

Subtract 3x from both sides and you can substitute y in the second equation for the first equation and solve for x.

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:

answer: n word

step-by-step explanation:

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