16 a botanist is performing an experiment to see whether temperature has an effect on the amount of time it…

16 a botanist is performing an experiment to see whether temperature has an effect on the amount of time it takes a pumpkin seed to produce a shoot. each pumpkin seed in the experiment is planted in an identical soil sample and kept at a different temperature. which is the independent variable in this experiment? f the temperature at which the samples are kept g the time it takes the seeds to produce a shoot h the number of samples in the experiment j the amount of soil in each sample 17 a jet plane travels 1,560 miles in 3 hours, and 2,600 miles in 5 hours. the graph of the function that represents this relationship is a straight line. what is the slope of the line? a 3/5 b 5/3 c 1/520 d 520 18 a bus driver leaves the bus depot to pick up passengers at one bus stop, picks up passengers at a second bus stop, before leaving austin for houston. of the following graphs fits this si
Answer
16.
Explanation:
Step1: Recall independent - variable definition
The independent variable is the variable that is changed or controlled in an experiment.
Step2: Identify the changed variable
In the pumpkin - seed experiment, the temperature at which the samples are kept is changed. The time it takes for seeds to produce a shoot is the dependent variable, the number of samples and the amount of soil are controlled variables.
Answer:
F. the temperature at which the samples are kept
17.
Explanation:
Step1: Recall slope formula
The slope formula for a line given two points ((x_1,y_1)) and ((x_2,y_2)) is (m=\frac{y_2 - y_1}{x_2 - x_1}). Here, the distance (d) is the (y) - variable and time (t) is the (x) - variable. Let ((x_1,y_1)=(3,1560)) and ((x_2,y_2)=(5,2600)).
Step2: Substitute values into the formula
(m=\frac{2600 - 1560}{5 - 3}=\frac{1040}{2}=520).
Answer:
D. 520