Answer:
The vertex is (0, 0).
Step-by-step explanation:
Check out the parent function: y = x^2. The graph is a parabola whose vertex is (0, 0) and which opens upward.
Then y = -x^2 is the same but opens downward. The vertex is (0, 0).
No because it works for y + x= 9 but not the first one
Answer:
I think the answers 18. hope this helps :)
Answer: It's the first 3, not the last one
Step-by-step explanation:
Confusing! But if the planes have two points in common, they intersect.
The last choice is the top and bottom. They have no edges in common, so they don't intersect
Solving this inequality is similar to solving a regular equation. The only thing you need to worry about with inequalities is that when you are dividing or multiplying by a negative number, you must flip the inequality sign. You won't have to worry about that here!
You are told x + 3/4 ≥ -1/3. Isolate the x by subtracting 3/4 from both sides. To subtract fractions, find a common denominator on both fractions, subtract the numerators, put the difference over the common denominator, and simplify if needed. The common denominator between

and

is 12.
1) To make the denominator of

, 12, multiply it by 3/3 (aka 1):

2) To make the denominator of

, 12, multiply it by 4/4:

3) Subtract the fractions to find the inequality for x:

You answer is x ≥ -13/12, or if you want to make -13/12 a mixed number, x ≥

.