<span>f(x) =-(x+9)(x-21)
Manipulating algebrically,
We get,
</span>f(x) =-(x+9)(x-21)
= -(x^2 -21x + 9x - 189)
= -(x^2 -12x - 189)
= -x^2 + 12x + 189
Axis of symmetry = -b/2a
plugging the values,
x = -12/-2
= 6
Answer: Part A:
A linear graph is one with a line that has the same slope all the way through. In this case, you can tell the line doesn't have the same slope the whole way through because at one part it flattens and also decreases.
Part B:
Increasing would mean the slope of the line is positive, or it appears to be going upwards. Constant would be the slope is 0, and it's just a horizontal line. Decreasing would be the slope of the line is negative, and it appears to be going downwards. In this case, this would mean that the segment K is increasing, because it appears to be going upwards, L would be constant, because it is a horizontal line, and M would be decreasing, because it's going downwards.
Part C:
I would say the ant started moving away from the hole for 2 seconds, and then stopped for 3 seconds, and then started moving again back to the hole for another 3 seconds.
Answer:
↓↓↓↓↓
Step-by-step explanation:
The perimeter is the length of the outline of a shape. To find the perimeter of a rectangle or square you have to add the lengths of all the four sides. x is in this case the length of the rectangle while y is the width of the rectangle. The area is measurement of the surface of a shape.
About 100. (Im not quite sure)
