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WORKBOOK

ANSWERS
1
1)yes 2)no 3)9 4)13 5)-9/2 6) 1)y=x+4 2)y 3x 3 3) y x 5 4)y=-x-1
3

7)I)m=3, (0,-5) ii)m=1, (0,0) iii)m=-2, (0,4) iv)m=0 ,(0,4) v)m=1, (0,-1/2) vi)no slope, no y
intercept 8) a)(0,-4), (2,0) b)(0,0) c)(0,3) no x-intercept d) (1,0) no y-intercept

EXERCISE 6

1) Graphs of d 1: 2x + y – 6 = 0 and d 2: x + 2y – 6 = 0 are given in the
figure. What is the area of OABC.

2)A(0, 2) and B(3,0) are given. Write the equation of the line AB.

3)If the lines d 1 : ax – y + 2 = 0 and d 2 : (a – 1)x – 3y – 4 = 0 are parallel to eachother then find a.

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