3 of 11 6 Which of the following represents the graph of 3x

3 of 11 6. Which of the following represents the graph of 3x 8y 24? 6. A. B. -10 10 10 10 C. D. -10 10 -10

4 . Ans is : D x - intercept is 8 and y intercept is 3 ( put y =o to find the x- intercept , put x=0 to find the y - intercept)

5 . the given inequality can be written as - 8 < 7 - 5x < 8 => - 15 < - 5x < 1 => 15> 5x> - 1 or 5x<15 , 5x> -1

x > - 1 /5 and x < 3 The interval is [ - 1 / 5 , 3] ANS : B

7. Slope intercept form is y = mx + c

the given eqn is x - 2y = 6 . A line parallel to this line is x - 2y = c . it passes through ( 10 , - 4)

=> 10 +8 =c =18

hence the required eqn is x - 2y = 18 => 2y = x -18 => y = x / 2 - 9 ANS : D

8 . It is a one-one function (for a given vale of x there is a unique value of y and vice-versa )