What are the domain and range of the exponential function below? F(x) = 3x + 2
2 answers:
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The ratio of boys to girls would be since you can divide both 14 and 21 by 7, the simplified form would be
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The answer is 2 to 3.
You can approach this question by writing the function as y=… as I did in the photo. Then rearrange to make x the subject. Lastly, swap the ys for xs and write as I did on the final line of my working. If you like I can explain how to rearrange the equation or answer any other questions but I think you should be able to see
