Y=3x-1 (2, 5),
Answer is B (2, 5)
Answer:
It's 70°
Step-by-step explanation:
∠APB = ∠RPQ = 35°
Now, ∠AOB and ∠APB are angles subtended by an arc AB at centre and at the remaining part of the circle .
∴∠AOB = 2∠APB = 2 × 35° = 70°
C is the correct .................
To calculate the inverse isolate x on one side and switch x with y on both sides
1)
y=(2x-3)/5
5y=2x-3
5y+3=2x
(5y+3)/2=x
-> f(x)=(5x+3)/2
2)
y=(x+8)/2
2y=x+8
2y-8=x
-> f(x)=2x-8
3)
y=(x+2)/7
7y=x+2
7y-2=x
-> f(x)=7x-2
4)
y=(1-2x)/x
y=(1/x)-2
y+2=1/x
x=1/(y+2)
-> f(x)=1/(x+2)
Answer:
undefined
Step-by-step explanation:
Vertical lines never have a defined slope as you can never divide a number by zero
