The formula of a distance between two points A and B is :

You should this formula by heart.
Then, you just have to apply it ! :D
Here :




Therefore :




In short, the answer would be the first option :

.
Hope this helps !
Photon
Answer:
(- 2, - 9 )
Step-by-step explanation:
The axis of symmetry passes through the vertex of the parabola.
Thus the x- coordinate of the vertex is x = - 2
To find y substitute x = - 2 into f(x)
f(- 2) = (- 2)² + 4(- 2) - 5 = 4 - 8 - 5 = - 9
Vertex = (- 2, - 9 )
The answer would be 143/220
When both sides of the equation are simplified, the coefficients are the same.
Step-by-step explanation:
An equation has infinite solutions when both sides of the equation are simplified, the coefficients are the same
Answer:
see explanation
Step-by-step explanation:
If 2 functions are inverses then the x and y- coordinates swap, that is
(x , y ) → (y, x )
Thus
a = - 3.8 ← the x- coordinate of the inverse
b = - 2.6 ← the y- coordinate of the inverse
c = 1.7 ← the x- coordinate of the inverse
d = 4.4 ← the y- coordinate of the inverse
e = 1.0 ← the x- coordinate of the inverse