Which of the statements about the x-axis are true?
1. The x-axis intersects the y-axis at the origin.
II. The x-axis is a vertical number line that passes through the origin.
III. The x-axis is the second coordinate in an ordered pair that describes the horizontal distance from the origin.
IV. The x-axis is a horizontal number line that passes through the origin.
A. I and II
B. IV only
C. lll only
D. I and IV
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D

Step-by-step explanation: II isn't it because the X-axis is the horizontal number line. III isn't it because the ordered pair is (x, y)

Hope this helps! :) Can you mark me brainliest?

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this