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Using the given equation find the missing coordinates of the points and then find the slope of the line for each equation
c) y=− 2/3 x+ 1/6 ; A(...; 6), B(9; ...)

Respuesta :

Answer:

Step-by-step explanation:

The slope for the equation is -2/3

y=-2/3x+1/6

6=-2/3x+1/6

x= -35/9

A(-35/9, 6)

y=-2/3x+1/6

y=-2/3(9)+1/6

y=-35/6

B(9,-35/6)

Answer:

Step-by-step explanation:

y = − 2/3 x+ 1/6......(1)

Comparing with y = mx + c

Slope m = -2/3

Let A(...; 6) be A(a; 6)

y1 = 6 and x1 = a

y - y1 = m(x - x1)

y - 6 = -2/3(x - a)

Multiply each term by 3

3y - 18 = -2x - 2a

3y = -2x - 2a + 18

Dividing by 3

y = -2x/3 - 2a/3 + 6.......(2)

Equating (1) and (2)

− 2/3x+ 1/6 = -2x/3 - 2a/3 + 6

Collecting like terms

-2x/3 + 2x/3 + 2a/3 = 6 - 1/6

2a/3 = 6 - 1/6

Multiply each term by 6

4a = 36 - 1

4a = 35

a = 35/4

a = 8 3/4

A(35/4; 6)

Let B(9;....) Be B(9; b)

y2 = b, y1 = 6, x2 = 9, x1 = 35/4

Slope m = (y2 - y1)/(x2 - x1)

-2/3 = (b - 6)/(9 - 35/4)

Cross Multiply

-2(9 - 35/4) = 3(b - 6)

-18 + 35/2 = 3b - 18

Collecting like terms

-18 + 18 + 35/2 = 3b

3b = 35/2

b = 35/(2×3)

b = 35/6

b = 5 5/6

B(9; 35/6)