B) a) A sales girl receives 5% commission on the sale value of every item sold by him.
She sells two items one for Rs 2,000 and another for Rs 9,800. Find the commission
on each item as well as total commission gained by her.

Her commission for item 1:

5% of 2,000 = 100

Her commission for item 2:

5% of 9,800 = 490

Total commission for each item;

Item 1 : 2,000

Item 2 : 9,800

answer: 590

step-by-step explanation:

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value