Answer:
y=-2x-4
Step-by-step explanation:
The slope has a Y-intercept at the -4, which narrows the choices down to 2. Since the slope is leaning left, it's a negative, which will make the answer to this y=-2x-4
That would be 1/2 * the base = 21 * 1/2 = 10.5 in.
Put 2 over one and multiply it by 6 over 5