Answer:
d
Step-by-step explanation:
(7,1)
Answer:
im pretty sure its A
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
Given:
The point (15,-11) is on the graph of a one-to-one function f(x).
To find:
The a point on the graph of
.
Solution:
We know that, if the points on the graph of a one to one function are given by (x,y), then the points on the graph of its inverse function are given by (y,x).
In the point (15,-11).
x-coordinate = 15
y-coordinate = -11
In the inverse function,
x-coordinate = -11
y-coordinate = 15
Therefore, the required point on the graph of
is (-11,15).
Imagine a right triangle where a and b are the legs and c is the hypothenuse.
Pitagora: a²+b²=c²
Divide by c
(a/c)²+(b/c)²=1
But a/c=sin(B) and b/c=cos(B)
Thus sin² + cos² = 1