We are given the parabolic equation
(x - 2)² = 10 (y - 3)
The general formula for the parabolic equation is
(x - h)² = 4a (y - k)
where a is the length of the focus
So,
4a = 10
a = 10/4
a = 2.5
The focus is 2.5
Answer:
the answer is D
Step-by-step explanation:
you know it is a negative slope so it is C or D. and -3 is also -3/1 and slope is calculated using rise over run. in D the slope 'rises' -3.
25.50 + 35.75 = 61.25
61.25+3.75 = your answer
Answer: $65
Answer:
![\sf y = \dfrac{1}{2} x + \dfrac{1}{2}](https://tex.z-dn.net/?f=%5Csf%20y%20%3D%20%5Cdfrac%7B1%7D%7B2%7D%20x%20%2B%20%5Cdfrac%7B1%7D%7B2%7D)
Explanation:
Take two points: (1, 1), (-1, 0)
Find slope:
![\sf slope: \dfrac{y_2 - y_1}{x_2- x_1} \ \ where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points](https://tex.z-dn.net/?f=%5Csf%20slope%3A%20%5Cdfrac%7By_2%20-%20y_1%7D%7Bx_2-%20x_1%7D%20%5C%20%5C%20%20where%20%5C%20%28x_1%20%2C%20%5C%20y_1%29%2C%20%28%20x_2%20%2C%20%5C%20y_2%29%20%5C%20are%20%5C%20points)
![\sf = \ slope : \dfrac{0 -1}{-1-1}](https://tex.z-dn.net/?f=%5Csf%20%20%3D%20%5C%20%20slope%20%3A%20%5Cdfrac%7B0%20-1%7D%7B-1-1%7D)
![\sf = \ slope : \dfrac{1}{2}](https://tex.z-dn.net/?f=%5Csf%20%20%3D%20%5C%20%20slope%20%3A%20%5Cdfrac%7B1%7D%7B2%7D)
Equation:
⇒ y - y₁ = m(x - x₁)
⇒ y - 1 = 1/2(x - 1)
⇒ y = 1/2x - 1/2 + 1
⇒ y = 1/2x + 1/2