M = 20/-4 = -5
Sub in (-4,0): 20+b = 0 ->b = -20
So, y = -5x - 20
0.5 will be rounded to 1.0
1.2 will be rounded to 1.0
1.7 will be rounded to 2.0
3.4 will be rounded to 3.0
Answer: 
Step-by-step explanation:
We use the formula y=mx+b to put it into slope-intercept form
m=6 (slope)
b=-7 (y-intercept)
Therefore, the answer is y=6x-7
I am not to sure but I think it would be 30+n or a variable