List three ways geography influences what kinds of work people do.

2 answers:

4 0

1. If the geography has really bad soil it would not be good for growing crops
2. If you live somewhere where it is always warm it would be good for work
3. Living in a very mountainous place would be hard for some jobs

cluponka [151]3 years ago

3 0

Where there are mountains there are sherpas, where there are oceans there are fisherman, and where there are caves there are explorers

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A relation contains the points (-5,-10) (-2,-4) (-1,-2) (4,8) (5,10) is this a function?

bagirrra123 [75]

Answer:

This is a function and there is no value of x for which we will get two or more different values of y.

Step-by-step explanation:

A relation contains the points (-5,-10), (-2,-4), (-1,-2), (4,8), and (5,10).

So, if we want to model the equation that includes those points then we will get the equation of a straight line passing through the origin {Since the rate of change of y with respect to x is uniform.

The equation is y = 2x

Now, this is a function and there is no value of x for which we will get two or more different values of y. (Answer)

8 0

3 years ago

What is the equation of the line passing through the points (-2, 2) and (3,-1)?

Archy [21]

Answer:

Step-by-step explanation:

+ Because of " the line passing through the points (-2, 2) and (3,-1)", that means this line has its equation y = ax + b where

$a=\frac{2-(-1)}{-2-3} =\frac{2+1}{-5} =-\frac{3}{5}$

So we write its equation: y = -3/5 x + b.

+ Then, now, we replace x = -2 and y = 2 into y = -3/5 x + b for finding b like:

2 = -3/5 * (-2) + b or 2 = 6/5 + b

so b = 2 - 6/5 = 4/5.

And this line has its equation: y = -3/5 x + 4/5.

Mẹthod 2:

we have a formule for a line that passes 2 points $(x_{0},y_{0}) , (x_{1},y_{1}) ,x_{0}\neq x_{1}$

Here is: $\frac{x-x_{0} }{x_{1}-x_{0} } = \frac{y-y_{0} }{y_{1}-y_{0} }$

Then, we can write for this case:

$\frac{x-(-2)}{3-(-2)} =\frac{y-2}{-1-2} \\\frac{x+2}{5} =\frac{y-2}{-3} \\-3(x+2) = 5( y-2)\\-3x-6=5y-10\\3x+5y-4=0\\or\\y=-\frac{3}{5}x+\frac{4}{3}$