Answer: -5/2
Step-by-step explanation:
(-9-1)/(4-0) = -10/4 = -5/2
Answer:
(√6)/2 square units
Step-by-step explanation:
The area of a triangle is half the magnitude of the cross product of the vectors representing adjacent sides.
QR = (4-3, -1-(-4), -4-(-5)) = (1, 3, 1)
QS = (3 -3, -5-(-4), -6-(-5)) = (0, -1, -1)
The cross product is the determinant ...

The magnitude of this is ...
|QR × QS| = √((-2)² +1² +(-1)²) = √6
The area of the triangle is half this value:
Area = (1/2)√6 . . . . square units
Area= 10.8m Perimeter= 15.6m hope this helps
Answer:
this is a horizontal line which crosses the y-axis at -4
Step-by-step explanation:
Answer:
B
Step-by-step explanation: