Answer:
gallon per day
Step-by-step explanation:
Rate = gallons per day
Rate =
= 
Answer:
k = 7
Step-by-step explanation:
Applying,
S = (y₂-y₁)/(x₂-x₁)................ Equation 1
Where S = slope of the line.
From the question,
Given: y₂ = 10, y₁ = 4, x₂ = k, x₁ = 1, S = 1
Substitute these values into equation 1
1 = (10-4)/(k-1)
crossmultiplying,
(k-1) = (10-4)
k-1 = 6
k = 6+1
k = 7
Answer:
x≥-8
Step-by-step explanation:
domain of f(x) :
9(x+8)≥0
x+8≥0
x≥-8