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Black_prince [1.1K]
4 years ago
9

Find the equation of the line passing through the points A (2,1) B (7,9)

Mathematics
1 answer:
Bezzdna [24]4 years ago
7 0
m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{9 - 1}{7 - 2} = \frac{8}{5} = 1\frac{3}{5}
              y - y₁ = m(x - x₁)
               y - 1 = 1³/₅(x - 2) Point - Slope Form
               y - 1 = 1³/₅(x) - 1³/₅(2)
               y - 1 = 1³/₅x - 3¹/₅
                 + 1           + 1
                    y = 1³/₅x - 2¹/₅ Slope - Intercept Form
         -1³/₅x - y = 1³/₅x - 1³/₅x - 2¹/₅
          -1³/₅x - y = -2¹/₅
     -1(-1³/₅x - y) = -1(-2¹/₅)
-1(-1³/₅x) + 1(y) = 2¹/₅
           1³/₅x - y = 2¹/₅ Standard Form
         1³/₅(0) - y = 2¹/₅
                0 - y = 2¹/₅
                    -y = 2¹/₅
                    -1    -1
                     y = -2¹/₅ Y - Intercept
               (x, y) = (0, -2¹/₅)
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Name a pair of complementary angles in this figure.
saveliy_v [14]

The answer choice which represents a pair of complementary angles in the task content is; angles DEH and DEJ.

<h3>Which pair of angles represent complementary angles?</h3>

It follows from the concept of angle geometry that two or more angles are said to be complementary when the sum of their measures is 90°.

It follows from the task content therefore that since, DEJ = 90° and the sum of the measures of angles DEH and DEJ amounts to 90°.

Hence, the pair of angles are complementary.

Read more on complementary angles;

brainly.com/question/16281260

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3 0
2 years ago
Factor by grouping 4ax-10bx+6ay-15by
Digiron [165]
Check if there is a giggle throughout the full equation, since there isn’t, we group the equation and we get

(4ax-10bx)+(6ay-15by)

Factor out the gcf of the two groups
2x(2a-5b)+3y(2a-5b)

Not sure how to explain this step in words but so do this

(2x+3y)(2a-5b)

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3 0
3 years ago
What is the slope between the points (5,-7) and (-7,1)?
SCORPION-xisa [38]
I hope this helps you



(5,-7) x'=5 y'= -7


(-7,1) x"= -7 y"=1


slope. (x'-x")=y'-y"


slope. (5-(-7))= -7-1


slope. 12= -8


slope =-8/12


slope = -2/3
6 0
3 years ago
Simplify the expression -7(-10-6)+1v+10v
ollegr [7]

Answer:

+112 +11v

Step-by-step explanation:

-7(-10-6)+1v+10v =

(-10-6) = -16

-7(-16) +1v +10v =

+112 +1v +10v =

+112 +11v

8 0
3 years ago
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Furkat [3]
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this is your formula

x/ (-2)

5 0
3 years ago
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