KHAN ACADEMY!
2 answers:
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To find the inverse we have to first change the function notation to 'y'
So
f(x) = -x becomes y = -x
Next, we have to switch the x and y values
So, y = -x becomes x = -y
Now, we have to solve for y.
y = -x
So the inverse of f(x) = -x is:
So
f(x) = -x becomes y = -x
Next, we have to switch the x and y values
So, y = -x becomes x = -y
Now, we have to solve for y.
y = -x
So the inverse of f(x) = -x is:
Answer:
y= 4x/5 - 1
Step-by-step explanation:
slope , m=
y= mx + b , let's take (5,3)
then 3= 4(5)/5 + b , b= 3-4 = -1
so y= 4x/5 - 1