Which situation is best modeled by an exponential function? A.
the area of a circle that has a radius of x inches

B.
the height of a plant that grows x inches each week

C.
the temperature of an object that is cooling by x% per hour

D.
the cost of a taxi ride that costs a flat rate plus x dollars per mile

City l has a temperature of −3 °f. city m has a temperature of −7 °f. use the number line shown to answer the questions: number line from negative 8 to positive 8 in increments of 1 is shown. part a: write an inequality to compare the temperatures of the two cities. (3 points) part b: explain what the inequality means in relation to the positions of these numbers on the number line. (4 points) part c: use the number line to explain which city is warmer. (3 points)