What component of Earth’s atmosphere exists entirely as a result of photosynthesis? A)oxygen gas
B)water vapor
C)nitrogen gas
D)carbon dioxide gas

Find the equation of the line that goes through the points (4, –1) and (2, –5). use slope formula,equation,to find the slope of a line that passes through the points. m = use slope-intercept form, y = mx + b, to find the y-intercept (b) of the line. b = write the equation in slope-intercept form, y = mx + b.

Me because some of question i don’t understand

What are the solutions of the following system? y=-2x^2 y=x-2