Answer:
The graph in the attached figure
see the explanation
Step-by-step explanation:
we have

we know that
The radicand must be greater than or equal to zero
so

solve for x
Adds 3 both sides


Multiply by -1 both sides
Remember that, when you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol

so
The domain of the function is the interval (-∞,-3]
For x=-3 ---> the value of y=0
The range is the interval {0,∞)
therefore
The graph in the attached figure
C and D bc +-0.7 is the answer
but because there no answer which contains both i think u should mark E
Answer:
Step-by-step explanation:
x²-x-30=0
x² - 6x + 5x - 30 = 0
(x² - 6x) + (5x - 30) = 0
x(x - 6) + 5(x - 6) = 0
(x + 5)(x - 6) = 0
x + 5 = 0 or x - 6 = 0
x = -5 or x = 6
Kx+9=7
Kx=-2 (subtract 9 from both sides)
X=-2/k (divide k from both sides.