Answer:
Step-by-step explanation:
we have a exponential function of the form
where
y is the population of San Francisco
x is the number of years
a is the initial population
b is the base
r is the rate of grown
b=(1+r)
In this problem we have
ordered pair (6, 870,887)
substitute in the exponential function
Solve for a
so
The exponential function is equal to
In 5 more years the number of years will be equal to
6+5=11 years
For x=11 years
substitute the value of x in the exponential function and solve for y
(6,-3)(-4,-9)
slope(m) = (-9 -(- 3) / (-4 - 6) = (-9 + 3) / -10 = -6/-10 = 3/5
y - y1 = m(x - x1)
slope(m) = 3/5
(6,-3)....x1 = 6 and y1 = -3
now we sub
y - (-3) = 3/5(x - 6) =
y + 3 = 3/5(x - 6) <==
Suppose x grams of 8% solution should be mixed to make 100 g of 3% solution.
here we shall have:
the amount of 3% solution in the 100 g will be:
3/100*100=3 grams
the the equation will be, 8% of what quantity becomes 3g?
(8/100)*x=3
hence solving for x we shall have:
0.08x=3
x=3/0.08
x= 37.8 grams
The implication of this is that, when you have 37.5 grams of 8% solution, that will contain 3 of pure chemical and hence when you add more solvent on top of 37.5 g until you reach 100g, that will be 3% solution.
Answer:
The function is linear
The function changes at a constant rate
Step-by-step explanation:
If this function were to be graphed, a line would be seen. It is not an increasing function because he is getting closer to home so the distance from his house is decreasing
