Astore charges $8.95 for an 8 ounce jar of maple syrup. the price for a 10 ounce jar of the same brand is $12.00. which jar is the better buy? what is the difference in the unit prices? if necessary, round to the nearest cent.
a) 8 ounce jar; $0.08
b) 8 ounce jar; $0.15
c) 10 ounce jar; $.12
d) 10 ounce jar; $0.08

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

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