So firstly, you want to foil - (7v^4 + 6) [Think of the minus sign as -1]: 
Next, combine like terms and your answer will be: 
Answer:
y + 1 = 8/9(x +4)
Step-by-step explanation:
Find the slope: [7- (-1)]/ [5 - (-4)] = 8/9
Using (-4, -1)
y-(-1) = 8/9[x- (-4)]
y + 1 = 8/9(x +4)
Answer:
Not the smartest person, but the graph shows that they're pointing down!
Step-by-step explanation:
A: for every foot you will divide by 9 feet.
B: divide 15 by 9