Answer:
f ( x ) = x² - 1
Step-by-step explanation:
hope this will help
Answer:
3x
Step-by-step explanation:
Answer:
y = 3
Step-by-step explanation:
The vertex of the parabola is (1,4) and the axis of the parabola is parallel to the positive y-axis.
So, the equation of the parabola will be (x - 1)² = 4a(y - 4) ....... (1)
Now, we have to get the value of a since the equation id the directrix is y = 4 - a.
Now, the parabola passes through the point (3,5) {Obtained from the graph).
Therefore, from equation (1), we get, 2² = 4a × 1, ⇒a = 1
Therefore, the equation of the directrix is y = 4 - 1 = 3. (Answer)
<h3>
Answer: A) 5.39</h3>
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Explanation:
Apply the distance formula.
You could also use the pythagorean theorem which is what the distance formula is based off of.
