The inverse is y=1/5x-2/5
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f(x)=5x+2
Replace f(x) with y
y=5x+2
Interchange the variables.
x=5y+2
Solve for y
y=-2/5+x/5 which is the same.d y=1/5x-2/5
Answer:
0.125
Step-by-step explanation:
you divide 1 into 8 and you get 0.125
Answer:
If f(1)=0 then 1 is a root and (x-1) is a factor of f(x). divide f(x) by (x-1). you now have a quadratic. Find its roots by methods you know.
actually this factors by grouping:
f(x)=x³+3x²-x-3
= x²(x+3)-1(x+3)
=(x+3)(x²-1)
=(x+3)(x-1)(x+1) // difference of squares
By zero product property roots are
-3, -1, 1
