Step-by-step explanation:
√a is defined only when a >= 0.
Therefore for √4x * √(x + 2) to be defined, both 4x and x + 2 must be non-negative.
When 4x >= 0, x >= 0.
When x + 2 >= 0, x >= -2.
x >= 0 and x >= -2, therefore we have x >= 0. (D)
Graph B.
Because y< so shade underneath the line
And because it is less then not less than or equal to then the line is dashed.
Answer:
y=-2x-4
Step-by-step explanation:
When an equation is perpendicular, then it is the equation's inverse. The inverse of 1/2 is -2
The y-intercept is b in y=mx+b. In this equation, b=-4
