Question

A line is represented by 7 y = 56 − 8 x . If mirror image is taken with respect to the Y − a x i s , a new line is formed. What will be the equation of the new line?

Answer 1

Answer:

y = $\frac{8}{7}$ x + 8

Step-by-step explanation:

7y = 56 - 8x

y = - $\frac{8}{7}$ x + 8

Answer 2

Given : A line is represented by 7 y = 56 − 8 x

mirror image is taken with respect to the Y − a x i s

To Find : What will be the equation of the new line

Solution:

A line is represented by 7 y = 56 − 8 x

mirror image is taken with respect to the Y − a x i s

in image through y axis    

y coordinate remains same and sign of x coordinate chnge

7 y = 56 − 8 x

Mirror image  taken with respect to the Y axis

=> 7y = 56 - 8(-x)

=> 7y = 56 + 8x  

=> y = 8 + 8x/7

=> y = (8/7)x  + 8

equation of the new line 7y = 56 + 8x  

y = (8/7)x  + 8

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