Q: What is the value of x2-3x-1 when x is -2 and y is 4?

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If you mean: 2*(x-4) = 73 then the value of x works out as 40.5

(X - 2)2 = 2X -4

It is 2.

If you mean: 4(x-2) = 0 then 4x-8 = 0 and x = 2

For x = -4 2x2 + x = 2 (-4)2 + (-4) = 32 - 4 = 28

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If you mean: 2*(x-4) = 73 then the value of x works out as 40.5

(X - 2)2 = 2X -4

It is 2.

x can have any value in the domain.

If you mean: 4(x-2) = 0 then 4x-8 = 0 and x = 2

If you mean: 4(2x-2) = 4-4(x-3) then the value of x works out as 2

4

The vertex of this parabola is at -5 -2 When the x-value is -4 the y-value is 2. The coefficient of the squared expression in the parabola's equation is 4. y = a(x - h)2 + k; (h, k) = (-5, -2); (x, y) = (-4, 2) 2 = a[-4 -(-5)]2 - 2, add 2 to both sides 4 = a(-4 +5)2 4 = a(1)2 4 = a

For x = -4 2x2 + x = 2 (-4)2 + (-4) = 32 - 4 = 28

(2)x=Y-4

If you mean the value of 15-2x when x is 2 then it is: 15-4 = 11

If you mean: x^2+15-3x then its value is 19 when x equals 4