## Question

###### Number 2 x + 3y - 9= 0 b) perpendicular on the line 3x + y...

number 2

x + 3y - 9= 0 b) perpendicular on the line 3x + y + 9 = 0 2. Find the area of the triangle with vertices at the points (6, 7),(-4, 4) and (8, -7).

## Answers

BACG ), B4,4), cl8j-7) Y3,13 wwith vertices cX,nM;), (reiYe?, (Y) Area of ale + n, (42-43) + t2 (Yj-y,) + Y2 Area z tr 6( 4+7) -4(-7-7)+8(7-4) 2. =t Ge1)-4(-14) +8( 3)] =7[ 66 + 56+24} ==(146)=73

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