Answer:
(6,12)
Step-by-step explanation:
Substitute the value of y into y=2x:
x+6=2x
x=6
Substitute x into the equation of y=2x
y = 2*6 = 12
(6,12)
With the information given, we deduce that the parabola is

Reflecting a function over the x axis means to change its sign. After the reflection, the parabola becomes

And to shift down a function, you subtract the shift from the equation: the equation becomes

Similarly, the other function is reflected over the x axis (sign change) and shifted up 3 (add 3 to the equation):

In order to compute the y intercept, we simply have to evaluate the functions at x=0: for the parabola we have

For the other function, we have

Answer:
Slope = y^2 - y^1 / x^2 - x^1
Graph n1
Slope = -5 - 1 / -6 - 2
Graph n2
Slope = -5 - 3 / 3 - 5
Graph n3
Slope = 3 - 0 / -4 - 5