Carina records the height of a candle after x hours burning. Her data are shown in the graph below. Burning Candle A graph has time burned (hours) on the x-axis and candle height (centimeters) on the y-axis. A line goes through points (2, 6), and (1, 8). Which is the best estimate for the height of the candle after 1 hour? 4 cm 5 cm 8 cm 9 cm

I'm confused on this could anyone me and show me what i need to do to solve it.

How does the graph of y = 3x compare to the graph of y = 3-x?

In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius increase in temperature. a scientist observes that the humidity on monday morning is 5.75 grams per kilogram. he wants to know how much the temperature must increase for the humidity to reach at least 49.17 grams per kilogram. let t represent the increase in temperature, in degrees celsius, from monday morning's observation. write an inequality to represent the situation, and use it to determine the desired temperature increase.