What type of operon is illustrated in model 1? 2. consider the operon in model 1. other than the gene that regulates the operon, how many genes are contained within the operon? 3. in model 1, where on the dna strand does rna polymerase bind to start transcription, the promoter, the operator or the terminator?

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.

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the cover letter is very important to be included in the job search document. hence, i strongly with the statement.