Y=mx b when solving for b
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Answer:
Step-by-step explanation:
The given equation is
According to the rational roots theorem, the possible rational roots are all factors of the constant term, expressed over all
factors of the leading coefficient.
The factors of the leading term, 1 are:
±1
The factors of the leading coefficient are:
±1
The possible rational roots are:
The total price is
where x is the number of minutes and y is the number of miles.
We know that the number of minutes was three times the number of
miles, i.e. x=3y. This changes our expression into
We also know that the total cost was 14, so we have
And since the number of minutes was three times the number of miles, it is