Question

Nomor 7 . bagian a.b.c.d . jawab y gan bsk di kumpul nih

Answer 1

Rumus gradien= (y2-y1) / (x2-x1)
Sejajar apabila m1=m2
Tegak lurus jika m1×m2= -1

A. m1= (-1-8) / (3-(-1))= -9/4
m2= (-9-(-3)) / (1-(-2))= -6/3= -2
》tdk keduanya

B. m1= (-7-6) / (4-(-3))= -13/7
m2= (8-(-2)) / (-1-2)= 10/-3
》tdk keduanya

C. m1= (-5-4) / (-8-4)= -9/-12= 3/4
m2= (-5-(-1)) / (0-(-3))= -4/3
》tegak lurus

D. m1= (-2-13) / (3-(-2))= -15/5= -3
m2= (5-(-1)) / (-2-0)= 6/-2= -3
》sejajar