Can you tell how much she selled? Then I can answer it
According to the vertex and the directrix of the given parabola, the equation is:
![y = \frac{3}{4}(x - 1)^2 + 4](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7B3%7D%7B4%7D%28x%20-%201%29%5E2%20%2B%204)
<h3>What is the equation of a parabola given it’s vertex?</h3>
The equation of a quadratic function, of vertex (h,k), is given by:
![y = a(x - h)^2 + k](https://tex.z-dn.net/?f=y%20%3D%20a%28x%20-%20h%29%5E2%20%2B%20k)
In which a is the leading coefficient.
The directrix is at y = k + 4a.
In this problem, the vertex is (1,4), hence:
![h = 1, k = 4](https://tex.z-dn.net/?f=h%20%3D%201%2C%20k%20%3D%204)
The directrix is at y = 7, hence:
![4 + 4a = 7](https://tex.z-dn.net/?f=4%20%2B%204a%20%3D%207)
![a = \frac{3}{4}](https://tex.z-dn.net/?f=a%20%3D%20%5Cfrac%7B3%7D%7B4%7D)
Hence, the equation is:
![y = a(x - h)^2 + k](https://tex.z-dn.net/?f=y%20%3D%20a%28x%20-%20h%29%5E2%20%2B%20k)
![y = \frac{3}{4}(x - 1)^2 + 4](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7B3%7D%7B4%7D%28x%20-%201%29%5E2%20%2B%204)
More can be learned about the equation of a parabola at brainly.com/question/26144898
Answer:
True answer: -24
Step-by-step explanation:
<em><u>Showing the error</u></em>
-16-2(-2) – 12 First you need to multiply
8(-2) - 12 The error here is that the wrong numbers are multiplied together
-16-12 Add the negatives together
-28 Your answer (the incorrect one)
<em><u /></em>
<em><u>The correct way of solving it</u></em>
-16 -2(-2) - 12 Multiply into the parenthesis
-16 + 4 -12 Add the first two numbers
-12 - 12 Add the numbers together
-24 The answer
Answer:
Real numbers are mainly classified into rational and irrational numbers. Rational numbers include all integers and fractions. All negative integers and whole numbers make up the set of integers. Whole numbers comprise of all natural numbers and zero.
Step-by-step explanation:
Answer: the longest side of a triangle is always the opposite side of the largest angle
Step-by-step explanation:
Line segment DF ☺️