The function f(x)=30x+150 represents the total cost of a gym membership at Jon’s Gym for x months plus a signup fee. Bella’s Gym has a signup fee of $50 and charges $45 dollars per month. Which statement is true? 1. The monthly charge at Bella's gym is $15 less than the monthly charge at Jon's gym.

2. The monthly charge at Bella's gym is $15 more than the monthly charge at Jon's gym.

3. The monthly charge at Bella's gym is $5 less than the monthly charge at Jon's gym.

4. The monthly charge at Bella's gym is $5 more than the monthly charge at Jon's gym.

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4