Question

draw the graph for the following table then find the value of a and b​

Answer 1

Drawn the graph , a = 5/2   , b  = 0

Step-by-step explanation:

x       y

-2      4

1        2

a       1

4       b

7       -2

y  = mx   + c

=> 4 = -2m + c

   2 =  m + c

=> 3m = - 2

m = - 2/3

c = 8/3

y = -2x/3  + 8/3

=> 3y = -2x + 8

=> 2x + 3y  = 8

Check ( 7 , - 2)

=> 2(7) + 3(-2) = 8

=> 8 = 8 ( veified)

x = a  y = 1

=> 2a + 3  = 8

=> a = 5/2

x = 4  y = b

=> 2*4 + 3b = 8

=> 3b = 0

=> b = 0

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