<span>The answer to this problem is 3. 3^7 is equal to 343.</span>
Check the picture below.
to get the equation of any straight line, we simply need two points off of it, so let's use those in the picture


Answer:
y= 2x+4
Step-by-step explanation:
To find slope its y2-y1/x2-x1
Plug it into any coordinate to get 2x
To find b in y=mx+b, you look at the y at the 0, in this case, "(0,4) Thefore the b is 5