What is the y-intercept of the function f(x) = -2/9x + 1/3?
2 answers:
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Answer:
10 friends
Step-by-step explanation:
we know that
The formula of the sum is equal to
where
a1 is the first term
n is the number of terms (number of friends)
d is the common difference in the arithmetic sequence
In this problem we have
----> the common difference
substitute in the formula and solve for n
Solve the quadratic equation by graphing
The solution is n=10
see the attached figure
therefore
She had 10 friends who got stickers
Standard form is when x and y are on one side of the equations and the constants are on the other side. Moving the variables and constants around we get, 
However we have to make sure the x is not negative. Multiplying all by negative one we get x-y=-1