Is the equation x2+y2=5 a function

Not a function

Step-by-step explanation:

Please use " ^ " to denote exponentiation:  x^2+y^2=5

This relation has the form x^2+y^2=r^2, which describes a circle of radius r and center at (0, 0).  Draw a circle of any radius and then apply the vertical line test:  draw a straight vertical line through the circle and count how many times the line intersects the graph.

If you do this properly you'll find that the vertical line intersects the circle in more than one place (that is, in two places).

This fails the vertical line test and tells us that x^2+y^2=5 does NOT represent a function.

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.