20 POINTS AND BRAINLIEST !! PLEASE ANSWER THIS QUESTION !!
2 answers:
Answer:
c)
Step-by-step explanation:
The way I solve these is...
First, you look at where the line crosses the y-axis because that's your b in the y=mx+b equation. Which is 9
Then I find a point where the line passes thru so for example, (-6,5) Remember that x point is always before the y.
From there I determine if the line is positive or negative, this one's positive because the line goes up from left to right, if it were going up from right to left, then it'd be negative.
So knowing it's positive we count the points up and to the right until reaching the next point. So first go up 2 points and then right 3.
Knowing this, remember that it's always rise over run for the slope, so we rose 2, and ran 3. so, the slope is 2/3
This gives us our equation of
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Answer:
(a) LM=12 units, LN=35 units, MN=37 units
(b)8 84 units
(c) 210 square units
Step-by-step explanation:
(a)
Since points L and M have same x coordinates, it means they are in the same plane. Also, since the Y coordinates of L and N are same, they also lie in the same plane
Length
Length
Length
Alternatively, since this is a right angle triangle, length MN is found using Pythagoras theorem where
Therefore, the lengths LM=12 units, LN=35 units and MN=37 units
(b)
Perimeter is the distance all round the figure
P=LM+LN+MN=12 units+35 units+37 units=84 units
(c)
Area of a triangle is given by 0.5bh where b is base and h is height, in this case, b is LN=35 units and h=LM which is 12 units
Therefore, A=0.5*12*35= 210 square units