Which is the slope of the line that passes through the points (2,8) and (4,6)?

2 answers:

8 0

The slope would be -1.
$\frac{4}{6} - \frac{2}{8} = \frac{2}{-2}$
That means that the slope between the two points would be right 2 (numerator) and down 2(denominator). That can be simplified to -1 as the slope.

inysia [295]3 years ago

6 0

The slope would be -2/2, or simplified, -1.

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For this question, you have to take Least Common Multiplier for which in this case will be "45" as, the denominators can get similar and get multiplied by a same value to form a similar expression. This allows us to cancel out them by common factors. Full process shown below.

$\mathbf{Given \: \: Expression: \: \dfrac{x - 4}{5} = 9 - \dfrac{2x - 41}{9}}$

$\mathbf{\dfrac{x - 4}{5} \times 45 = 9 \times 45 - \dfrac{2x - 41}{9} \times 45}$

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$\mathbf{9x - 36 = 405 - 10x + 205}$

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$\mathbf{9x - 36 + 36 = - 10x + 610 + 36}$

$\mathbf{9x = - 10x + 646}$

$\mathbf{9x + 10x = - 10x + 646 + 10x}$

$\mathbf{19x = 646}$

$\mathbf{\dfrac{19x}{19} = \dfrac{646}{19}}$

$\mathbf{\therefore \quad x = 34}$

$\boxed{\mathbf{\underline{\therefore \quad Final \: \: Answer \: \: is; \: \: x = 34}}}$

Hope it helps.

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