You probably noticed that the process we used to solve linear systems in Section 2.2 is almost identical to the process we used to solve linear systems in Section 2.4.
To make this concrete, let’s compare the steps for the system
You probably noticed that the process we used to solve linear systems in Section 2.2 is almost identical to the process we used to solve linear systems in Section 2.4.
To make this concrete, let’s compare the steps for the system
Suppose we want to construct a stock portfolio containing two stocks. If we have $50,000 to invest and desire a total dividend return of 3%, how much must we invest in each stock?
Although this is a pretty simple portfolio, it gives us insight into how we can model the portfolio with a system of linear equations.
Suppose you want to generate a table of values from a formula…perhaps to help evaluate a limit. Google Sheets (or any spreadsheet) can quickly generate the values.
For a parabola of the form
y = ax2 + bx + c
what are the formulas to find the intercepts and vertex. This example show the key formulas.