Question

Select the correct answer from each drop-down menu.

Garry is cooking for his friends. He wants to buy some potatoes, which are priced at m dollars a pound. He has already spent b dollars on other ingredients.

The following expression represents the total amount of money that Garry would spend after buying x pounds of potatoes.
mx+b


If the amount already spent by Garry on other ingredients, b dollars, is halved, then the value of m will .
not change
be half of the orginal amount
be doubled

If the cost for each pound of potatoes, m dollars, is tripled, then the value of b will ,
be one-third of the orginal price
be tripled
notchange

and the value of mx will .
be one-third of the orginal price
be tripled
notchange

Answer 1

The correct answers are:

Not change; not change; and triple.

Step-by-step explanation:

A change in the amount he pays on other ingredients will not change the amount he pays for potatoes. This means m does not change.

A change in the price of potatoes will not change the amount he pays for the other ingredients. This means b does not change.

A change in the price of potatoes will, however, change the amount he pays total for the potatoes. Tripling the price of potatoes will cause the amount he pays total for the potatoes to triple as well.