googoo4
25.06.2019 •
Mathematics
Determine the number of solutions for the system of equations y=2/3x+4 and y=2/3-x2
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Ответ:
2/3x+4=2/3-2x
2/3x-(-2x)
2/3x+2x
2 2/3x+4=2/3
2/3-4=-3 1/3
2 2/3x=-3 1/3
(3 1/3)/(2 2/3)=1 1/4
x = 1 1/4
y=2/3-2x
y=2/3-2(2/3)
y=2/3-4/3
y=-2/3
The answer is (1 1/4, -2/3)
Ответ:
Option D, 2
Step-by-step explanation:
Step 1: Identify x1, x2, y1, y2
(x1, y1) -> (2, 4)
(x2, y2) -> (4,8)
Step 2: Find the slope
Option D, 2