In city a, the temperature rises 4 degrees °f from 8 a. m. to 9 a. m. then the temperature drops 7 degrees °f from 9 a. m. to 10 a. m. in city b, the temperature drops 6 degrees °f from 8 a. m. to 9 a. m. then the temperature drops 2 degrees °f from 9 a. m. to 10 a. m. write an expression that represents the change in temperature from 8 a. m. to 10 a. m. for each city. simplify and interpret each sum. use pencil and paper. which city has the greater change in temperature?

The general expression for the change in temperature between 8am and 10am

where stands for change in the subscripted time interval.

For city A:

For city B:

In city A, there is an overall drop of 3 degrees (negative value). In city B, the temp drops 8 degrees.

Among A and B, city B has a greater change in temperature (8 vs. 3)

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

i think it might be a but you might want a second opinion