You need to use the topic Straight line and find the y-intercept and gradient.
The slope of the linear function is negative. Then the correct option is B.
<h3>What is the slope?</h3>
The slope is the ratio of rising or falling and running. The difference between the ordinate is called rise or fall and the difference between the abscissa is called run.
The graph of a linear function is shown.
From the graph, as the value of x is increasing then the value of y is decreasing. Then the slope is negative.
Then the correct option is B.
More about the slope link is given below.
brainly.com/question/3605446
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Answer:
147
Step-by-step explanation:
Multiply the average by the number of values
85*5=425
Find the sum of the 3 values you have
102+96+80=278
Take the sum of the 3 values you have away from the sum of all 5 values
425-278=147