to get the equation of any straight line, we simply need two points off of it, let's use the ones in the picture below.

Hank is 9 years old. Explanation - What I did is I made a chart, and the categories were Sam and Hank. Then all I did was add 5 to Sam's age and added 3 to Hank's age. I repeated this until the sum of the ages equaled 24.
Slope formula

Plug in the info given from the 2 coordinates:

Simplify the slope:
<span>
Final answer: </span>
Slope=1/3
You are expected to memorize the general shape of the sine function, including where the peaks and zero crossings are. The graph shows you the value of
sin(270°) = -1
<span>6x−2(x+4)=12
6x - 2x - 8 = 12
4x = 20
x = 5</span>