The graphs below show four functions: Graph A shows function f of x equals 4 multiplied by 3 to the power of x. Graph B shows fu
nction f of x equals 4 multiplied by 3 to the power of negative x. Graph C shows function f of x equals 10 to the power of x. Graph D shows function f of x equals 10 to the power of negative x. Which graph best shows the function f(x) = 4(3)−x to represent the rate at which a radioactive substance decays? Graph A Graph B Graph C Graph D
No, the graphs of the lines are not parallel because if you simplify 27x-3y=-81, you get y=9x+27, and in order to have the lines parallel, both equations must have the same "m" in y=mx+b. 6 and 9 do not equal, so no they are not parallel.
