1. What must you set a quadratic function equal to in order to solve it?
2 answers:
1. What must you set a quadratic function equal to in order to solve it?
<h2> 0</h2>ax^2 + bx + c = 0
2. Explain how to complete the square to solve a quadratic function.
Arrange the quadratic into the standard format:
ax^2 + bx + c = 0
Write out the initial bracket:
(x + b/2)^2
Expand the initial bracket:
(x + b/2)^2 = ax^2 + b + b^2
Compare b^2 to c and adjust the equation:
c - b^2 = d
(x + b/2)^2 + d
3. What is the relationship between a directrix and focus to the graph of a quadratic function known as a parabola?
A parabola is the graph of a quadratic function. (See Attachment). It is also the set of all points whose distance is from the focus is equal to the distance from the directrix.
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Answer: B, D, and E
0.85L
or
L-0.15L
or
L(1-0.15)
or
Step-by-step explanation:
L is the number of hours Landen spent at the beach. Mateo spent 15% less time. This means he spent 85% of it. So 0.85 times L. We can also calculate it by subtracting the difference between the two kids. - 15%. 15% is 0.15L or . We subtract by L-0.15L or as
. This fraction can simplify to