Click on all that are true about the graph of y > x^2 + 4x + 4.
2 answers:
Answer:
The correct options are:
a) The parabola opens up.
c) The vertex is at (-2,0).
d) The parabola is dashed.
Step-by-step explanation:
We are given an algebraic inequality as:
y > x^2 + 4x + 4:
This implies that:
y> (x+2)^2
The options that holds true regarding this inequality is:
a)
The parabola opens up.
Since the coefficient of the leading term is positive.
c)
The vertex is at (-2,0).
d)
The parabola is dashed.
Since the inequality is a strict inequality.
( The line of symmetry of parabola is x=-2.
Also the parabola is shaded inside )
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Answer:
D
Step-by-step explanation:
The diagram is attached.
Looking at the diagram, we want the side "opposite" of the angle given and the side "adjacent" is given.
Which ratio relates opposite and adjacent? It is Tan.
We can use trigonometry and tan ratio to solve for the distance "x":
D is the correct answer.
