If a is a positive integer such that a =
1 answer:
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Answer:
The gradient of the line joining the points and
is
.
Step-by-step explanation:
The gradient of the line joining two distinct point on a plane is represented by the slope of a secant line (), that is:
(1)
If we know that and
, then the gradient of the line is:
The gradient of the line joining the points and
is
.
Answer:
5 units
Step-by-step explanation:
The radius is the distance from the centre of the circle to a point on the circumference.
Use the distance formula to calculate the radius r
r = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (- 3, 2) and (x₂, y₂ ) = (1, 5)
r =
=
=
= = 5