You get the answer by inserting values in slope formula and then solving for k. I'll call k, y_2
So the answer k = -5 is incorrect because k = 11.
Hope this helps.
Here's how you do it: you find all the distances between the three points and add them together to calculate the perimeter of the triangle. To calculate for the distance between two points, the formula is
d = √[(x2 - x1)² + (y2 - y1)²]
So, just take two points, assign x1 and x2 with corresponding y1 and y2, then you get the answer.
Points: D(1,4), E(3,-2), C(-3,1)
After substituting the answers would be:
DE = 6.3 units
CE = 6.7 units
CD = 5 units
Perimeter = 6.3 + 6.7 + 5
Perimeter = 18 units
Answer:
From plotting the given points, the shape clearly resembles a second-degree polynomial with negative leading coefficient. Hence the limit as x->-∞ and as x->+∞ is -∞.
Step-by-step explanation:
