moins d

then the segment makes an actual angle with the positive direction of X-axis.
2. If m<0 , the line segment makes an obtuse angle with the positive direction of X-axis.
3. If m is either positive or negative, then the line segment is nonvertical.
A.1 only B. 2only C. 1and3 only D. 2and3 only E. 1,2 and 3

1. The point M(0,5) bisects the line joining P(4,0)and Q(x,y), then the coordinate of Q is
   A.(2,5) B.(4,5) C. (-4,10) D.(-4,-10) E.(-4,-5)
   8.a and b ate two real numbers and a≠b, then the slope of the through(a,b) and (b,-a) is
   A.0 B.1 C.-1 D.a/b E.b/a
2. The slope of the line joining the points(x,-3) and (9,11) is 2 then x=…………
   A.8 B.4 C.-4 D. 2 E.-2
3. The points A(2,-2) , B(4,2) and C is any point on AB. What is the slope of AC?
   A.1/2 B.1 C.2 D.-2 E.-1
   11.If the points D(-4,6), E(1,1) and F(x,y) are collinear, then x+y=…………
   A.2 B.1 C.3 D.-1 E.-2
4. Given that the points A(-5,4), B(3,5), C(7,-2) and D(-1,-3). The measurement of the angle
   between AC and BD is
   A.0° B.30° C.45° D.60° E.90°
   13.Given that the points P(-12,1), Q(9,3) and R(11,-18). Which of the following is true?
   1.R is on PQ 2.PQ⊥QR 3.△PQR is a right triangle
   log⁡M-log⁡N 2.log⁡∛M=3 log⁡M 3.log_√a⁡M =2log_a⁡M
   A. 1 only B. 2 only C. 3 only D. 1 and only E. None of them
   6.Which of the following is (are) true?
   1. log_4⁡x=2log_16⁡x 2. log_b⁡x=3 log_(b^3 )⁡x 3. log_4⁡16= log_16⁡4
      A. 1only B. 2 only C. 3 only D. 1 and 2 only E. 1 and 3 only
5. 〖10〗^(1+log_10⁡3 )=……..
   A.3 B.30 C. 3/10 D.10/3 E.15
   8.(4)^log_2⁡3 =……..
   A.3 B.-6 C.9 D.12 E.15