T = 2.2t A track coach believes he can predict an elite runner's 400-meter time, T, based on his 200-
meter time, t, using the above equation. What is the meaning of the 2.2 in the equation?

A. a runner’s 400-meter time is twice his 200- meter time

B. a runner’s 400-meter time is twice his 200-meter time, plus 2% of his 200- meter time

C. a runners 400- meter time is twice his 200- meter , plus 10% of his 200- meter time

D. a runner 400- meter time is twice his 200- meter, plus 20% of his 200- meter time

The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. the function below shows the relationship between f(x) and x: f(x) = 10(1.3)xwhich of the following graphs best represents the function? graph of f of x equals 1.3 multiplied by 10 to the power of x graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity graph of f of x equals 10 multiplied by 1.3 to the power of x graph of f of x equals 1.3 to the power of x