Answer:
Step-by-step explanation:
To find the inverse of a function you take it in y=f(x) form, switch x and y and then solve for the new y.
So I'll do the first one.
f(x) = 8x-10
y=8x-10 Now switch x and y
x = 8y-10 Now solve for y.
x+10=8y
(x+10)/8 = y
g(x) is not that, so it is not the inverse. Can you figure out the second one?
1/10 * 4/10 = 4/100 divide both by 4 it'll be 1/25
Answer:
Step-by-step explanation:
y
=
x
2
+
91
Explanation:
Let the number be x
, then Square of the number is x
^2
91 more than the square of a number" will be x^
2 + 91
So, we can write it as an algebraic expression with two variables as :
y
=
x
^2 + 91
The slope is -3 and the y-intercept is -1
Well first you have to get 0.4 and turn that decimal into a fraction which will be 2/5 and that fraction is already at its simplest form and cant be reduced so your answer is both 0.4 and 2/5.