The answer is d its decreasing
The point-slope form of the equation of a line is

where
is a point on the line, and

is the slope of the line.
We can use either one of the two given points as the point on the line.
We also need to find the slope. We can use the coordinates of the two given points to find the slope of the line.
The slope of the line that passes through points

and

is

Let's find the slope using (-3, 5) as point 1 and (-1, 4) as point 2.

Now we use the point-slope formula with point 1 and the slope we found just above.

Let Sydney's age be x
Christine's age is 2x
Sum of their age is 54
x + 2x = 54
3x = 54
x = 18
Sydney is 18 years old.
Answer:
C. 16
Step-by-step explanation:
y^2-z^2
(-5)^2-(-3)^2
25-9
16
Can u explain it little clearer, do u mean all the fives?