Question

during a cold two - day period in a certain state, the daily highs for certain cities in degrees fahrenheit (°f) were as shown in the figure. determine the change in temperature from thursday to friday for city a.

Explanation:

Step1: Identify Thursday's temperature

On Thursday, City A's high - temperature is $-7^{\circ}F$.

Step2: Identify Friday's temperature

On Friday, City A's high - temperature is $-5^{\circ}F$.

Step3: Calculate temperature change

The change in temperature $\Delta T$ is calculated by subtracting Thursday's temperature from Friday's temperature. So, $\Delta T=-5-(-7)$.
Using the rule $a - (-b)=a + b$, we have $\Delta T=-5 + 7=2^{\circ}F$.

Answer:

$2^{\circ}F$