Question

The equation of a circle is shown below.

(x + 2)2 + (y + 1)2 = 4

Niah uses the following steps to sketch a graph of the circle.

1. Obtain the center (-2, -1) and radius 2.
2. Write the equation in the form (x - (-2))2 + (y – (-1)2) = 22.
3. Draw a circle through the plot points (0, -1), (-4, -1), (-2, 1), and (-2, -3).
4. Mark the point (-2, -1) on the coordinate axis.
5. Calculate and plot the points around the center using given radius 2.

What is the correct order of steps to sketch the circle?

3, 4, 1, 2, 5

2, 1, 4, 5, 3

1, 2, 3, 4, 5

4, 2, 5, 1, 3

Answer 1

so the equation of a circle is (x-x_1)^2 + (y-y_1)^2=r^2
so your (x_1,y_1) is the center so (-2,-1)

Answer 2

o it gave you that sorry

Answer 3

haha its okay!

Answer 4

2 is the best first step so only one answer works

Answer 5

thats what i thought! thank you:)

Answer 6

np