Dada la siguiente gráfica, obsérvala atentamente e indica todos los elementos solicitados. El análisis de función dada se realizará en dos giros completos desde − hasta . INDICA TODAS TUS RESPUESTAS EN FORMATO EXACTO.
Utiliza intervalos cuando sea necesario. Indica:
a) Dominio y Contradominio (o Rango)
b) Máximos, mínimos y raíces
c) Positividad y negatividad
d) Concavidad positiva, concavidad negativa y puntos de inflexión
e) Crecimiento y decrecimiento

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

i think the answer is 90 hope this