Just compare the one you made to a normal ruler... Look at size, shape, etc. Simple.
Answer:
12 ft x 25 ft
Step-by-step explanation:
If L is the length and W is the width:
L = 2W + 1
300 = LW
Substitute:
300 = (2W + 1) W
300 = 2W² + W
0 = 2W² + W − 300
0 = (2W + 25) (W − 12)
W = 12
L = 2W + 1
L = 25
The rectangle is 12 feet wide and 25 feet long.
The equation of the line in its generic form is:
y = mx + b
Where,
m = (y2-y1) / (x2-x1)
For (-1, 3) and (0, 1):
We look for the value of m:
m = (1-3) / (0 - (- 1))
m = (- 2) / (0 + 1)
m = -2
We look for the value of b:
1 = m (0) + b
b = 1
The line is:
y = -2x + 1
For (1, 4) and (0, 2):
We look for the value of m:
m = (2-4) / (0-1)
m = (- 2) / (- 1)
m = 2
We look for the value of b:
2 = m (0) + b
b = 2
The line is:
y = 2x + 2
The system of equations is:
y = -2x + 1
y = 2x + 2
Answer:
the system has one solution
