Answer:
=-(3*3*3)
=-3
-3 is a rational number, thus
will be a rational number.
The domain is all real numbers and the range is all real numbers f(x) such that f(x) ≥ 7. C) The domain is all real numbers x such that x ≥ 0 and the range is all real numbers. Incorrect. Negative values can be used for x, but the range is restricted because x2 ≥ 0.
The distance (r) between any two points (a,b) and (c,d) is :—

Putting the values,



The distance between the points is √41
Answer: Check out the graph below
The graph is a straight line through the points (0,6) and (1,8)
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Explanation:
Plug in x = 0 to find that...
y = 2x+6
y = 2(0)+6
y = 0 + 6
y = 6
The point (0,6) is on the line
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Repeat for x = 1
y = 2x+6
y = 2(1)+6
y = 2 + 6
y = 8
The point (1,8) is also on the line
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Now plot the two points together on the same xy grid.
Draw a straight line through the two points. Stretch the line as far as you can in either direction. See below. I used GeoGebra to make the graph. It's a free graphing app.
Desmos is another useful free graphing tool. There are many options if you don't have a graphing calculator.
Answer: D
Step-by-step explanation:
multiply the denominators then the numerators