Answer:
(-4,2)
Step-by-step explanation:
The line going horizontal is the X-axis. And they line going up and down is the y-axis. The way you write the location of a point is (X,Y). Hope this helps!!
Answer:
Step-by-step explanation:
Given
Solving (a): The cost function:
From the given parameter, it shows that the number of floor has no effect on the floors.
So, represent the floors with x.
The cost function is:
Solving (b): The slope and its interpretation
A function is represented as:
Where:
By comparing: to
So:
<em>What it means is that, no matter the number of floors, the cost remains unchanged.</em>
<h3><u>The value of y is equal to (-4 - 3x)/4.</u></h3>
Because there are two variables and only one equation, we cannot solve for the exact value of y.
However, we can still get a value of y.
y - 4 = 3x + 5y
Subtract y from both sides.
-4 = 3x + 4y
Subtract 3x from both sides.
-4 - 3x = 4y
Divide all terms by 4.
(-4 - 3x)/4 = y
Answer:
2, I think. Lines 1 & 2 and lines 7 & 4 are perpendicular
edit: 3 pairs, 3 & 5 is the last one
Step-by-step explanation:
