△ABC has vertices A(0,7), B(5,-5) and C(10,7). The area of △ABC is
A.50 B.60 C.80 D.120 E.140
30.△ABC is an isosceles right triangle with ∠B=90°. If A(3,-2),B(2,-1), then AC=…
A. 2 B.1 C.2 D.3 E.4
What is the perimeter of a triangle with vertices at the points (1,4),(1,7) and (4,4)?
A. 3+2 B.32 C.6 D.6+32 E.9+32
32.The point on the X-axis which is equidistance from (4,4) and (5,3) is
A. (0,0) B.(-1,0) C.(2,0) D.(1,0) E.(3,0)
The slope of the equation 2x-y=7 is
A. -2 B.2 C.-7 D.7 E.-72
34.Which of the following statement(s) is (are) true?
1.The line 2x=3 is parallel to Y-axis.
The line x+y=2 and 2x+2y=7 are parallel.
The distance between the points (0,3) and (0,-3) is 6.
A.1 only B. 2only C. 1and3 only D. 2and3 only E. 1,2 and 3
35.The slope of the line which is perpendicular to the line 2y=3x+4 is
A.-23 B.1.5 C.4 D.13 E.2
The points (0,3) , (4,0) line on the line,
A.4y=3x B.3x+4y=1 C.4x+3y=1 D.3x+4y=12 E.4x+3y=12
