Dada a função f : R → R por f(x) = x² + 2x, determine o valor de f(2) +

f(3) – f(1).​

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

What does independent variable and dependent variable mean in math?

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.