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beks73 [17]
3 years ago
11

Describe a vectors v = [x y] that are orthogonal to u = [a b]. If u is not the zero vector, then v is a multiple of [a b]. If u

is not the zero vector, then v is a multiple of [a -b]. If u is not the zero vector, then v is a multiple of [a -b]. If u is not the zero vector, then v is a multiple of [a -b]. If u is not the zero vector, then v is a multiple of [a + b a - b].
Mathematics
1 answer:
hoa [83]3 years ago
6 0

Answer:

Step-by-step explanation:

Sbdbshee

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Answer:

(5/2, 29/2), and this represents a maximum

Step-by-step explanation:

g(x) = -2x^2 + 10x + 2 is a quadratic function with coefficients {-2, 10, 2}.

The formula for the axis of symmetry (which passes through the vertex) is

x = -b/ [2a].  Here, a = -2; b = 10.  Therefore, the axis of symmetry is

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Evaluate the function g(x) = -2x^2 + 10x + 2 at x = 5/2 to determine the y-coordinate of the vertex:

g(5/2) = -2(5/2)^2 + 10(5/2) + 2, or

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g(5/2) = -25/2 + 27, or

g(5/2) = 14.5

The vertex is thus (5/2, 29/2), and this represents a maximum, because the coefficient of the x^2 term is negative (the curve opens downward).

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3

Step-by-step explanation:

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Slope =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

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m  = 4

y - y₁ = m (x - x₁)

y - [-2] = 4(x - [-1])

y + 2 = 4(x + 1)

y + 2 = 4x + 4

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