If a linear function passes through two points (x1, y1) and (x2, y2), what is the average value of the function on the interval from x1 to x2

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

The value √10 and √15 are plotted on the number line

Find the distance between (7,-6) and (-3,-9)