ANSWER: y = 2x + -6
EXPLANATION
Slop intercept for is
Y = Mx + b
Where Mx is the slope and b is they y intercept
The slope is 2 and the y intercept is -6
We know the y intercept cause it’s written (x,y) and -6 is in the y value spot.
So just plug in the numbers and you get
Y= 2x + -6
Answer: 20.2 mph
Step-by-step explanation:
Given
Train travels 10.1 miles in half an hour i.e.
Distance 
time 
we know, 
Insert the values

Answer:
A, B, D are equations representing a linear function
Step-by-step explanation:
All linear functions have an equation like the following: y=mx+b, where m is the slope and b is an offset.
A. y=x-4, m=1 and b=-4
B. y=x+4, m=1 and b=4
D. y=x+7, m=1 and b=7
The third eq dont behave like a linear function since there is quadratic term on one side of the equation, this is not a linear function
Answer:
number 5 is 15x
Step-by-step explanation:
what you have to do is just add basically. The ones with exponents you do the usual with those as well. Ignore the X's and when you solve the problem add the x beside the number.