Bob got 84% of the questions on her test correct. If there were 25 questions on the test how many did bob get correct
1 answer:
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Answer:
Step-by-step explanation:
To find the inverse of a function, simply switch the 'x' and 'y' variables. Substitute in 'y' in the place of f(x) for this purpose:
y = 2x - 10
Switch positions:
x = 2y - 10
Add '10' to both sides to begin simplifying:
x + 10 = 2y
Divide both sides by 2:
This can be rewritten as:
Therefore, the inverse of the function is:
Using a graphical tool we obtain that the solution of this system
(intersection between the lines)
is given by the point (x,y) = (2,4)
(intersection between the lines)
is given by the point (x,y) = (2,4)