You are going to school in a week and you are out to get school supplies. You need a backpack and it costs 9 dollars. Each pack of mechanical pencils cost $7.50. How much do you spend if you buy "y" packs of pencils?
Step-by-step explanation:
9 is initial fee (y-intercept) and 7.50 is the slope.
To multiply two polynomials, each term of the first polynomial is <u>multiplied</u> to each term in the second polynomial. Combine any <u>like terms</u> to simplify.
