Andrew went to the store to buy some walnuts. The price per pound of the walnuts is $4 per pound and he has a coupon for $1 off
the final amount. With the coupon, how much would Andrew have to pay to buy 4 pounds of walnuts? Also, write an expression for the cost to buy pp pounds of walnuts, assuming at least one pound is purchased.
The roots of a quadratic equation simply tell what values of x will make the equation true. A quadratic function is a function where the largest power for the variable is 2. ... A quadratic equation is given to you so that you can solve it for the variable. A quadratic function is given to you so that you can graph it.