Y - y1 = m (x - x1)
m = 4 , x1 = 1 and y1 = 3, so its
y - 3 = 4(x - 1)
Answer:
Red Line: y=4
Blue Line: y=-2
Green Line: x=-1
Yellow Line: x=6
Step-by-step explanation:
Red line: the line crosses through 4 on the y axis. Therefore, y=4.
Blue line: the line crosses through -2 on the y axis. Therefore, y=-2.
Green line: the line crosses through -1 on the x axis. Therefore, x=-1.
Yellow line: the line crosses through 6 on the x axis. Therefore, x=6.
This is a bit confusing because when you see a horizontal line your mind might assume it would be an x=. Yet, it is the opposite. Hope this helps!
Easily move nx to left and a to the right side
mx-nx=-2-a
take x common factor
x(m-n)=-2-a
divide by (m-n)
x=(-2-a)/(m-n)
that said
Answer:
43 & 96
Step-by-step explanation:
x=one number
y=other number
x+y=139
x-y=53 x=y+53
substitute for x
y+53+y=139
reduce
2y+53-53=139-53
2y=86
2y/2=86/2
y=43
x=96
Answer: 720 is greater than 648
Step-by-step explanation:
The required posterboard for an art project = 4 1/2 square feet
1 square foot = 144 square inches
4 1/5 × 144 square inches
= 648 square inches.
The available posterboard is with a length of 30 inches and a width of 2 feet.
One foot = 12 inches
The area of the available posterboard 30 × 2 × 12 = 780 inches
Since the available area is greater than the required area, the posterboard will therefore be enough for the project.
