Step-by-step explanation:
a) gradient= y2-y1/x2-x1
gradient of AB:
gradient=-4-1/2-3
=-5/-1
=5
gradient of BC:
=-5+4/7-2
=-1/5
b) as the priduct of both gradient is -1 ,both lines are perpendicular.
c) as we have seen lines are perpendicular so it is a right angled triangle.
Answer:
D.
Step-by-step explanation:
im sure is d please mark brainliest
Answer:
Step-by-step explanation:
then the equation reads:
The standard form of an quadratic function is:
So the answer is:
Multiply straight across (neg times a neg = a positive)
=28/81
Answer:
B and C are correct
Step-by-step explanation:
17/4 = 4.25
4 and 1/4 = 17/4