Can some help pls How are they related to f(x)
y = 4f(x)

y = f(x - 6)
y = -3(f(x))
y = f(2x)
y = 5f(x) + 2

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

other answer is correct. i had used the radius of the radius somehow. a website: