3 years ago

What do all simple machines have in common

1 answer:

6 0

The answer is type of simple machine called a wedge. A wedge is just one of six types of simply machines. The others are the inclined plane, screw, lever, wheel and axle, and pulley.

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Write an equation of the line that passes through each pair of points.

AysviL [449]

Answer:

$y = \frac{1}{7} x - 1 \frac{6}{7}$

Step-by-step explanation:

In y= mx +b, m is the slope and b is the y-intercept.

$\boxed{slope = \frac{y1 - y2}{x1 - x2} }$

where (x₁, y₁) is the 1st coordinate and (x₂, y₂) is the 2nd coordinate

Slope

$= \frac{ - 3 - ( - 2)}{ - 8 - ( - 1)}$

$= \frac{ - 3 + 2}{ - 8 + 1}$

$= \frac{ - 1 }{ - 7}$

$= \frac{1}{7}$

Substitute m= ⅐ into the equation:

y= ⅐x +b

To find the value of b, substitute a pair of coordinates into the equation.

When x= -1, y= -2,

-2= ⅐(-1) +b

-2= -⅐ +b

b= ⅐ -2

$b = - 1 \frac{6}{7}$

Thus the equation of the line is $y = \frac{1}{7} x - 1 \frac{6}{7}$ .

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3 years ago

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