Jocelyn and her children went into a bakery and she bought $9 worth of cookies and brownies. Each cookie costs $0.50 and each brownie costs $3. She bought 4 more cookies than brownies. Graphically solve a system of equations in order to determine the number of cookies, x, x, and the number of brownies, y, y, that Jocelyn bought. need graph too

answer:

(-8,7)

explanation:

we know that  

f

(

−

3

)

=

7

therefore, if we wish to get the output as 7, in the function, we need to have our input to be -3.

looking at the function  

f

(

x

+

5

)

, what should the value of x be, such that the input in the function becomes 7?

we simply equate the terms,

x

+

5

=

−

3

x

=

−

8

thus, the point on the new function would be  

(

−

8

,

7

)

it would be 6xy and -16xy.

is should be y = 5x

step-by-step explanation:

correct me if im wrong