Y=mx+b
So -4=(2)(-3)+b
-4=-6+b
+6 +6
2=b
The answer would be y=2x+2
Answer:
Fourth option is the right answer.
Step-by-step explanation:
In these questions we always consider X axis as a baseline.From this axis if we measure an angle anticlockwise it will be written as positive and if measured clockwise it will be negative.
In the picture attached we can see the direction of arrow which tells us the measurement direction.
Now we have to draw an angle of 300° angle which will be measured in anticlockwise direction and the angle will lie in fourth quadrant.
So fourth option is the right answer.
Answer:
(x - 2)² + (y - 9)² = 9
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
The radius is the distance from the centre to a point on the circle.
Calculate r using the distance formula
r = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (2, 9) and (x₂, y₂ ) = (2, 6)
r =
=
= = = 3
Centre = (h, k) = (2, 9) and r = 3, thus equation of circle is
(x - 2)² + (y - 9)² = 9
Answer:
40%
Step-by-step explanation:
20 out of 50 simplifies to 2 out of 5 which is equivalent to 4 out of 10 which is also 40 out of 100 which is 40%.