Answer:
1) Move the "non X" term to the right:
2x^2+16x-8=0 becomes
2x^2 +16x = +8
2) Divide the equation by the coefficient of X² which in this case is 2
x^2 + 8x = 4
3) Now here's the "completing the square" stage in which we:
• take the coefficient of X (which is 8)
• divide it by 2 [8 / 2 = 4]
• square that number [4^2 = 16]
• then add it to both sides of the equation.
x^2 + 8x + 16 = 20
Take the square root of both sides of the equation:
x + 4 = sq root (20)
x = sq root (20) -4
x1 = 4.472135955 -4
x1 = .472135955
x2 = -4.472135955 -4
x2 = -8.472135955
Source: https://www.1728.org/quadr2.htm
Step-by-step explanation:
Answer: 35
Just took a test on this
Answer:
Step-by-step explanation:
Answer:
A. y ≤ 1/2x + 2
Step-by-step explanation:
Well look at the graph,
It is a solid line with it shaded down,
meaning it is y ≤,
So we can cross out B. and D.
So the y intercept is 2, we know this because the y intercept is the point on the line that touches the y axis.
now the slope can be found by seeing how far away each points are from each other,
Hence, the answer is A. y ≤ 1/2x + 2
is approximately 0.14!
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