Answer:
Slope= 5/7
Step-by-step explanation:
If the points are (7, 5) and (21, 15),
Use the slope formula y2-y1/x2-x1 and enter the given points above.
15-5/21-7=
10/14=
5/7
A. -6
In order to find we will plugin
∴
It's the second one I believe, because it's not a straight line, and nearly all functions have curved lines
50-30.25=19.75