Answer:
The First Graph. (-1 and 1 are connected to each other and have open holes)
Step-by-step explanation:
It is the first graph because we are taking the absolute value of x. If we were to plug in -2, we would result in the absolute version, which is 2. There are open holes at the end of the line segment because |x| is less than 1. If we were using greater than or equal to or less than or equal to, then they would be closed holes.
Answer:
Step-by-step explanation:
<u>Given function:</u>
<u>Rewrite in the standard form:</u>
- f(x) = - 0.0033x² + 0.84x
<u>The maximum height is the vertex with x- coordinate -b/2a, which is:</u>
- x = -0.84/2(-0.0033) ≈ 127.27
<u>The highest point is:</u>
- f(127.27) = -0.0033(127.27)² + 0.84(127.27) ≈ 53.45 m
<u>The horizontal distance the golf ball travels before hitting the ground:</u>
- f(x) = 0
- - 0.0033x² + 0.84x = 0
- 33x² - 8400x = 0
- x(33x - 8400) = 0
- x = 0- initial point
- 33x = 8400 ⇒ x = 8400/33 ≈ 254.55 m
The answer would be 2 1/2.
