Can someone help with this?

Mathematics

2 answers:

MAXImum [283]3 years ago

8 0

I belive it is the second option!

gayaneshka [121]3 years ago

3 0

8(2y+y)

hope it helps!!!

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Determine the equation of a line passing through (2,1) and perpendicular to the line containing points (2-2) and (4,10)

Aleks04 [339]

(2,-2)(4,10)
slope = (10 - (-2) / (4 - 2) = (10 + 2) / 2 = 12/2 = 6
The slope of the original equation is 6, but we are looking for a perpendicular line, so we need the negative reciprocal slope. All that means is " flip " the slope and change the sign. 6 or 6/1.....flip it...1/6...change the sign....-1/6. So we will need the slope of -1/6.

y = mx + b
slope(m) = -1/6
(2,1)...x = 2 and y = 1
now we sub and find b, the y intercept
1 = -1/6(2) + b
1 = -1/3 + b
1 + 1/3 = b
3/3 + 1/3 = b
4/3 = b

so ur perpendicular equation is : y = -1/6x + 4/3

3 0

4 years ago

Find an equation for the line with an x-intercept of 4 and y-intercept of -2

Bumek [7]

Answer:

Step-by-step explanation:

The x-intercept exists when y = 0; the coordinate that results from our x-intercept is (4, 0).

The y-intercept exists when x = 0; the coordinate that results from our y-intercept is (0, -2).

We can use these 2 coordinates to find the slope of the line we need to write:

$m=\frac{-2-0}{0-4}=\frac{1}{2}$

Now we can use that slope along with one of our points to write the equation of the line. I am going to use the point-slope form, then we will solve it for y to put it into slope-intercept. Let's use the coordinate (4, 0). Keep in mind that regardless of which point we choose to use to write our equation, we will get the same equation.

y - 0 = 1/2(x - 4) and

y = 1/2x - 2

That's your equation!

6 0

3 years ago

Mabel measured an angle on her math worksheet with her protractor. The angle measured 83. If she were to draw an angle which was

postnew [5]

Answer:

Mabel would have to draw a new angle that measured 97°.

Step-by-step explanation:

Supplementary angles always add up to 180°.

So, she would have to draw an angle that was $180$ ° $- 83$ °