orbit of the moon
1. Tilt of earths axis 2. Earths axis remains parallel throughout its yearly orbit.
No; it's about 23 degrees off the plane of its orbit.
The earths rotational axis is tilted approx. 23 degrees from vertical The earths rotational axis remains parallel throughout its rotation around the sun, high summer (longest day) in the northern hemisphere, is when the top of the axis is at full tilt toward the sun. (shortest day in the southern hemisphere)
In geography, "parallel" usually refers to lines of latitude that run parallel to the equator. These lines help in locating places on Earth's surface in relation to the equator. They are used to measure distances north or south of the equator.
intersect
y=-2.5 is parallel to the x axis. The equation of the x axis is y=0
Any line with the equation [ x = any number ] is parallel to the y-axis.
The slope (or gradient) if the line is parallel to the y-axis, is infinite. If it's parallel to the x-axis the slope is zero.
It's called an ORDINATE. when there is a straight line 100% parallel to the x axis, it's slope is 0. If a line is parallel to the y axis, its slope is undefined, or infinite.
[ y = plus or minus any number ] is parallel to the x-axis.
y=-2 is parallel to the x-axis and perpendicular to the y-axis.
Its the orientation of the earths rotational axis that defines the equinox, the axis remains parallel throughout the orbit of the sun, and when its side on to the sun (spring and autumn), thats the equinox (equal length of day and night).