Answer:
y=40
Step-by-step explanation:
The formula for Direct Variation is y=kx or k=y/x. In this case I would use k=y/x. If you're y is 8 and x is 3, this means that K=8/3. Using this, we know that X=15. We have to find a Y value so that the fraction with an x of 15 simplified is 8/3. To do this you would write 8/3 and y/15. Now cross multiply to get 3y=120. Divide by 3 to get y=40. View my attachment for the work!
The function that describes the graph is an exponential function
<h3>How to determine the function type?</h3>
From the graph, we have the following highlights:
- Initially, when x increases; y seem not to increase
- Then, x and y increase at the same time
- Finally, y increase and x seem not to increase
The above is the description of an exponential function
Hence, the function that describes the graph is an exponential function
Read more about exponential function at:
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Answer:
The answer to your question is below
Step-by-step explanation:
Write an equation for the cost of fish at each fish store.
a) Wet pets
We must consider the initial price and the cost of each fish.
total cost = C
kit cost = $15
cost of each fish = $0.60
cost of one fish = f
C = 15 + 0.60f
Example, if the number of fish is 4, then the total cost will be
C = 15 + 0.60(4)
C = 15 + 2.4
C = $ 17.4
b) Grips and Frills
total cost = C
kit cost = $13
cost per fish = $0.80
cost of one fish = f
Equation
C = 13 + 0.8f
Answer:
f(x) = -7x + 1
Step-by-step explanation:
Slope intercept form is
y = mx + b
m is slope
b is y-intercept
--------------------------
y decreases by 7 for each increase of 1 in x
slope = -7
to find "b" plug in one of the points and m = -7
using point (3, -20)
y = mx + b
-20 = -7(3) + b
-20 = -21 + b
b = 1
The equation is
f(x) = -7x + 1
Is this what you're looking for?
