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Q: What is the gradient when y equals 2x plus 4?

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Gradient = -2 y-intercept = -4

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If x=4 then 2x+7 =

x equals 4

Gradient to the curve at any point is the derivative of y = x2 So the gradient is d/dx of x2 = 2x. When x = 2, 2x = 4 so the gradient of the tangent at x = 2 is 4.

2x + 5 = 13 2x = 8 x = 4

3x+56 = 2x+4 3x-2x = 4-56 x = -52

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x=-4

4 + x = 2x --> 4 = 2x - x --> 4 = x: x = 4

Do you need this equation factored or? 2x+3=x+4?

2x-4

parallel

2x - 3y = 5 => 3y = 2x - 5 has a gradient of 2/3 9y + bx = 4 => 9y = -bx + 4 has a gradient of -b/9 The two gradiends must be the same if the two lines are parallel: 2/3 = -b/9 so that b = -6

2x + 5 = 13 2x = 8 2x/2 = 8/2 x=4

2x+4 = -16 2x = -16-4 2x = -20 x = -10

x = 0

2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4

4

k

2x + 10 = 182x = 8x = 4

2x+5=3x+1 -x=-4 x=4

If: 2x+6x-4 = 52 Then: x = 7

Yes.

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