When an equation is in standard form, x isn't negative so she should divide everything by a negative 1 to change it into a positive equation.
Answer:
Which statement best describes how to determine whether f(x) = 9 - 4x^2 is an odd function?
Answer: yes.
Step-by-step explanation:
18 people × .82 percent = 14.76
Answer:
- (x + 10)² + (y + 4)² = 232
Step-by-step explanation:
<h3>Given </h3>
- Center = (-10, -4)
- Point on circle = (4, 2)
<h3>To find </h3>
<h3>Solution</h3>
<u>Remember the standard equation of circle:</u>
- (x - h)² + (y - k)² = r², where (h, k) is the center and r is radius
<u>We have</u>
Use distance formula (Pythagorean theorem) to work out the length of the radius. We know that radius is the distance from the center to any point on the circle.
<u>Here we are finding the distance between points (-10, -4) and (4, 2)</u>
- r² = (-10 - 4)² + (-4 - 2)²
- r² = 14² + 6²
- r² = 232
<u>So the equation is:</u>
- (x + 10)² + (y + 4)² = 232
Its 216 square feet because 24 x 18 / 2 = 216 (divided by two because its a triangle)
