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Slope of a Line

In the xy-pla...

Question

In the xy-plane, what is the slope of the line with equation $3 x + 7 y = 9$ ?

- \frac{7}{3}

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- \frac{3}{7}

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\frac{3}{7}

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3

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7

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Solution

The correct option is B $- \frac{3}{7}$
Given equation of line $3 x + 7 y = 9$
On comparing above equation with $y = m x + c$ we get
$m = - \frac{3}{7}$

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Similar questions

\frac{d y}{d x} = \frac{3 y - 7 x + 7}{3 x - 7 y - 3}

2 x - 7 y + 4 z - 3 = 0, 3 x - 5 y + 4 z + 11 = 0

(- 2, 1, 3)

a x + b y + c z - 7 = 0

2 a + b + c - 7

\frac{d y}{d x} = \frac{3 y - 7 x - 3}{3 x - 7 y + 7}

3 x + 7 y + 8 = 0

x + 7 = 9

\frac{x}{4} = 25

9 y = - 135

15 - x = 4

3 (x - 3) = 15

7 y + 3 = 9

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