Question #18: Three times as many boys as girls visited the mall in Deptford. A
total of 20 boys and girls visited the mall. PART A: If x represents the number of
boys and y represents the number of girls. Construct a system of equations to
model this situation. (A system contains two equations) *
Your answer

(boys)  x=3(y)

(girls)   y=x/3

Step-by-step explanation:

Vertical stretch:

Suppose, we are given any function f(x)

and it is asked to vertically stretch graph of f(x) by 'a' units

Vertical stretch means stretching y-value

and f(x) is y-value

so, we multiply 'a' to f(x)

so, our function will become  now, we are given  The graph of function g(x) is a vertical stretch of the graph of function f(x) by a factor of 10.

It means that parent function is f(x)

and new function becomes g(x)

and it is stretching vertically by 10 units  so, we can write as

Answer

I hope this helps :) please let me know if it is 100% correct!