Respuesta :
I say the answer is A, because according to the function, it's showing the prices and X is the # of the books. 1.75 each textbook.
Given the expression
[tex] f(x)= 1.75x+5.25 [/tex]
Where f(x) or y is the cost of the number of textbooks mailed
x is the number of textbooks mailed
At y-intercept, we know that x is always 0
so here at y-intercept , the number of textbooks mailed is 0
The value of y- intercept gives us the cost of box when no textbooks are mailed
Hence the right option is the cost of mailing the box with no textbooks inside