Answer:
a=6
Step-by-step explanation:
write the equation as y=mx+b
y=-5/3x+b
solve for b
1=-5/3*-3+b
1-5=b
b=-4
Plug in -14 and solve for x
-14=-5/3x-4
-10=-5/3x
30/5=x
x=6 (x is basically a because a is the x coordinate)
I think is answer is 9
20/4 = 5
40/8 = 5
60/12 = 5
80/16 = 5
Answer is 5
Answer:66
Y=mx+b
10=-4*12+b
10=-48+b
b=58
r=-4(-2)+58
r=66