Here we must look at the given map and find the distance between the ice rink and the museum. The image of the map can be seen at the end of the answer. We will find that the real-life distance is 12km.
So we know that each cm in the map represents 4km in real-life.
What I did to measure the distance is mark each cm of the ruler in a piece of paper, and then use that piece of paper to find the distance between the ice rink and the museum.
You can't use another ruler to measure it because depending on your screen, the image can be a little bit smaller or larger.
With this method, I found that the distance is 3cm.
And each cm is equivalent to 4km, then the real-life distance is:
3*4km = 12km
Concluding, the real-life distance is 12 kilometers.
If you want to learn more about scales, you can read:
brainly.com/question/17386250
A) changing m affects the slope of the line
b) changing b translates the line up or down b units
The correct answer will be B
-4x + 7x - 6 = 6 <=>
-4x = 12 <=>
x = -3
=> y = 7(-3) - 6 <=>
y = -21 - 6 <=>
y = -27
Answer:
D
Step-by-step explanation:
From any point (x, y) on the parabola the focus and directrix are equidistant
Using the distance formula
= | y + 1 |
Squaring both sides
(x + 5)² + (y - 5)² = (y + 1)^2 , that is
(y + 1)² = (x + 5)² + (y - 5)² ← subtract (y - 5)² from both sides
(y + 1)² - (y - 5)² = (x + 5)² ← expand left side and simplify
y² + 2y + 1 - y² + 10y - 25 = (x + 5)²
12y - 24 = (x + 5)² ← factor left side
12(y - 2) = (x + 5)² ← divide both sides by 12
y - 2 = (x + 5)² ← add 2 to both sides
y = (x + 5)² + 2
or
f(x) = (x + 5)² + 2 → D