Answer:
D. Circle; (x²) + (y²)-4=0
Step-by-step explanation
Simplify the equation by dividing both sides by 2
2x² + 2y² =8
x² + y² =4
this gives a circle form where we can apply (x-h) ² +(y-k)² =r² to find center and radius of the circle.
Thus r=2, h=0, k=0
Center of circle is at (h, k), (0,0)
Radius of circle is 2
Answer:
Step-by-step explanation:
So first, lets solve for the intercepts.
Let’s start by finding the x intercept.
Plug in 0 for y.
10x+9(0)=-90
10x=-90
X=-9, so your first point on your line will be (-9,0).
Now the y intercept.
Plug in 0 for x.
10(0)+9y=-90
9y=-90
Y=-10, so your second point on your line will be (0,-10).
Use those points to create your line.
23/8 for the most part I think
Answer:
slope is 0
Step-by-step explanation:
The slope of any horizontal line is zero, 0.
