The summer solstice (at the start of summer) is the point on the ecliptic where the Sun
a. crosses the celestial equator moving north.
b. crosses the celestial equator moving south.
c. is farthest north of the celestial equator halting its northward movement.
d. is farthest south of the celestial equator halting its southward movement.
Question 2
Which of the following causes seasons on Earth?
a. Earth being closer to the Sun during our summer and farther during our winter
b. the Sun's varying light output
c. the tilt of Earth's axis
d. the eleven-year sunspot cycle
One-point linear perspective.
Sarah Sze, Triple Point (Pendulum).
How to find the point of intersection of two straight lines by graphing
Set-Point Theory
Point of Intersection of 2 Circles
Find an equation of the tangent line to the graph of f(x) = sqrt(x) / (x+1) at the point x=1