In the coordinate plane, ABCD has vertices with coordinates A(1,-1), B(-5,3), C(-3,6),
1 answer:
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Answer:
Step-by-step explanation:
we know that
The equation of a vertical parabola into vertex form is equal to
where
(h,k) is the vertex of the parabola
if a>0 -----> the parabola open upward (vertex is a minimum)
if a<0 -----> the parabola open downward (vertex is a maximum)
<u>Verify each case</u>
case A)
The vertex is the point
a>0 -----> the parabola open upward (vertex is a minimum)
The range is the interval--------> [5,∞)
case B)
The vertex is the point
a<0 -----> the parabola open downward (vertex is a maximum)
The range is the interval--------> (-∞,5]
case C)
The vertex is the point
a>0 -----> the parabola open upward (vertex is a minimum)
The range is the interval--------> [4,∞)
case D)
The vertex is the point
a<0 -----> the parabola open downward (vertex is a maximum)
The range is the interval--------> (-∞,4]
For this case we have the following expression:
What we must do in this case is to use one of the properties of the sum.
In this case, we must use the associative property.
The associative property states:
We have then:
Simplifying we have:
Answer:
the following is equal to (2x / 3 - 7) + 7
D. 2x / 3.