Answer:
Step-by-step explanation:
The general equation for a direct variation is y = k*x
So your first step (usually) is to find k
y = k x
when x = 4
then y = 50
- y = k*x
- 50 = k * 4 Divide by 4
- 50 / 4 = k*4/4
- 12.5 = k
Now you can find the value of y when x = 2
- y = k*x
- k = 12.5
- x = 2
- y = ?
y = 12.5 * 2
y = 25
The third diagram is the correct answer.
Answer:
y=-7x-22
Step-by-step explanation:
y-y1=m(x-x1)
y-6=-7(x-(-4))
y-6=-7(x+4)
y=-7x-28+6
y=-7x-22
Please mark me as Brainliest if you're satisfied with the answer.
Answer:
18.9
Step-by-step explanation:
21+(-3)-(-0.9) = 21-3+0.9 = 18+0.9 = 18.9
