The graph of a quadratic function is continuous; the domain is all real numbers, except in a few very special circumstances.
The PARCC test in algebra 1 will require you to be able to rewrite formulas by algebraically rearranging them to solve for the variable of interest.
In word problems, we compute the rate of change, the cost per pound, the number of cats we just have to buy, and lots of other quantities.
You can use the FOIL method to multiply 2 binomials. It works for certain cases, but learning how to apply the distributive property is better.
It’s possible to estimate the solution to a system of linear equations by graphing them on a coordinate plane. Here’s PBA #4.
It’s possible to find the zeros of a quadratic function (a parabola) by factoring it, provided there are real zeros for the function.
How do you spot a “linear function” when given a table of values, a graph, a word problem, or an equation?