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densk [106]
3 years ago
5

The ordered pairs (3,2) and (-2,13) are points on a linear function. Which equation best describes this function?

Mathematics
2 answers:
Mars2501 [29]3 years ago
7 0

Answer:

The equation which describe this function is 5x + 11y = 37

Step-by-step explanation:

<u>To find the slope</u>

slope = (y₂ - y₁)/(x₂ - x₁)

slope = (13 - 2)/(-2 - 3) = 11/-5

<u>To find the equation</u>

(x - 3)/(y - 2) = -11/5

5(x - 3) = -11(y - 2)

5x -15  = -11y + 22

5x + 11y = 22 + 15

5x + 11y = 37

Therefore the equation which describe this function is

5x + 11y = 37

Alexxx [7]3 years ago
4 0

Answer:

y = \frac{-11}{5} x + \frac{43}{5}

Step-by-step explanation:

Linear function is defined by  y = ax+b

         where a and b are constants and (x,y ) are variables given as point

using point (3,2) that is plugging x =3 and y =2 ,we

                      2 = 3a+b .............  equation(1)

  likewise using point (-2,13) and plugging x =-2 and y =13 ,we get

                  13 = -2a+b ..........  equation(2)

      Solving the equation   (1) and 2

          \left \{ {{2=3a+b} \atop {13=-2a+b}} \right.

          subtracting equation 2 from equation 1

             3a+b = 2

             -2a+b = 13

__-_______________

         we have  5a =  -11

                          a= \frac{-11}{5}

plugging a=\frac{-11}{5} in equation (1),we get

3(\frac{-11}{5}) +b =2

b =  2 -3(\frac{-11}{5})

b = 2+\frac{33}{5}

b=\frac{43}{5}

therefore equation is obtained by plugging

 a =\frac{-11}{5} and b = \frac{43}{5}

we get  equation as

    y = \frac{-11}{5} x + \frac{43}{5}

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