Find the slope from the two points (-4,-1) (-3,-3)
1 answer:
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Answer:
Step-by-step explanation:
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0.31 as a fraction is
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Answer:
7
Step-by-step explanation:
Using the exact values for
cos45° = and tan60° =
, then
2(cos²45° + tan²60°)
= 2( ( )² + (
)² )
= 2( + 3 ) ← distribute
= 1 + 6
= 7
Answer:
See below
Step-by-step explanation:
<h3>Continuation of the question</h3><u>Data in the table:</u>
<u>PH 4 5 6 7 8 9 10 11 </u>
<u>Bacteria 116 120 131 136 141 151 148 163</u>
- <em>Create a scatter plot to represent the data: Based on the data and your scatter plot, what do you think a good linear function would be to represent the data?</em>
<em>See attached for scatter plot</em>
We can see the chart is close to linear function. Let's build one based on data in the table
<u>The line will be in the form of:</u>
- y = mx + b
<u>If we use two points and get the equation</u>
- (4, 116) and (8, 141)
<u>Finding the slope:</u>
- m = (141-116)/(8-4) = 25/4 = 6.25
<u>Then, finding y-intercept:</u>
- 116 = 6.25*4 + b
- b = 116 - 25 = 91
<u>So the line is:</u>
- y = 6.25x + 91
<em>Note: This is approximate best fit graph and it is attached as well. Exact formula for the line is built by using different method and is very close to the one above</em>
