The high temperature on February 5th was 3˚F. The low temperature was -18˚F. What was the total temperature change for the day?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Which of the following equations is equivalent to x/3-6/x=1

Consider the input and output values for f(x) = 2x - 3 and g(x) = 2x + 7. what is a reasonable explanation for different rules with different input values producing the same sequence?