Answer:
y intercept is 140, slope is 2/1
Step-by-step explanation:
sorry, not sure about the function
Answer:
12 years
Step-by-step explanation:
20-8=12
Micheal's babysitter is 12 years older than Micheal.
Answer:
x = 42, y = 36.37
Step-by-step explanation:
Answer: The second option and the third option are true.
Step-by-step explanation:
The formula of the line in slope-intercept form is:
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
Where <em>m </em>is the slope and <em>b </em>is the y-intercept.
By definition, the y-intercept in a direct variation is 0.
Therefore, substituting
and
into the equation, you obtain:
![y=-3x+0](https://tex.z-dn.net/?f=y%3D-3x%2B0)
Then, the equation is:
![y=-3x](https://tex.z-dn.net/?f=y%3D-3x)
As this is a line, it is a linear function.
Therefore, the second option and the third option are true.