Question

a block of dry ice is taken out of the freezer and is evaporating. from a starting weight, the block lost weight at a constant number of grams per minute. the following graph shows the weight of the block after taking it out of the freezer.
question 1: what was the intial weight (to the nearest ten grams)?
enter the number without units:
question 2: how fast is the weight dropping (to the nearest ten grams per minute)?
enter the number without units:
question 3: if the weight were dropping faster (choose as many as fit):
the line would be flatter
the line would be steeper
the intercept on the vertical axis would be lower
the intercept on the vertical axis would be higher

Explanation:

Step1: Find initial weight (t=0)

At $t=0$ minutes, the graph shows weight = 700 grams.

Step2: Calculate weight loss rate

Use points $(0, 700)$ and $(3, 590)$.
Rate = $\frac{700 - 590}{3 - 0} = \frac{110}{3} \approx 40$ grams per minute.

Step3: Analyze faster weight drop

A faster rate means a steeper negative slope; initial weight (vertical intercept) stays the same.

Answer:

1. 700
2. 40
3. The line would be steeper