c. 9
To complete the square, you take half of the coefficient of b and square it. It's important to note that the value being added will always be positive.
If the radius is 43, find the diameter.
2 answers:
Answer:
Diameter = 86 units
Step-by-step explanation:
What is radius and diameter?
- The radius of a circle is a straight line from the middle of a circle to its perimeter. The diameter of a circle is a straight line that touches the perimeter of the circle, then intersects with the center of the circle, and touches the perimeter of the circle again.
How do we find the diameter?
- The diameter of a circle is twice the radius, so 2 × 43 = 86 units
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Answer:
f(x) = f(-x) = x^2 -1 is an <u>even</u> function
Step-by-step explanation:
When f(x) = f(-x), the function is symmetrical about the y-axis. That is the definition of an <em>even</em> function.
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An odd function is symmetrical about the origin: f(x) = -f(-x).
Answer: -5/3
Step-by-step explanation:
Use the slope formula:
You substitute the numbers in and subtract to get -5/3.