13) Sophie wants to plot the point (8,5). She starts at the origin, moves 8 units up and 5 units to the right, and plots her point. Explain what Sophie did wrong and

find the point she actually plotted.

To plot the point (8,5), start at the origin and

move

Sophie actually plotted the

point

Identify the parent function that can be used to graph the function f(x)= (1/4x)^3

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

When y’all answer can y’all explain too !