Answer:
YZ = 1
XY = 1.5
XYZ 1.33
Step-by-step explanation:
The y-coordinate of c is -4 if the Point c partitions line segment AB in the ratio of 1:3.
<h3>What is a straight line?</h3>
A straight line is a combination of endless points joined on both sides of the point.
We have two points:
A(-4, -7), and B(12, 5)
Let's assume A(x1, y1) and B(x2, y2)
The ratio is 1:3 = m:n
Let's assume the y-coordinate is a
From the section formula:


a = -4
Thus, the y-coordinate of c is -4 if the Point c partitions line segment AB in the ratio of 1:3.
Learn more about the straight line here:
brainly.com/question/3493733
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Answer:
14n
Step-by-step explanation:
When you combine like terms, you don't change the final answer. 5 + 9 is 14, so 5n + 9n is 14n.