Answer:
Step-by-step explanations:
Researchers asked 250 families whether or not they were homeowners and how many cars they had. Their responses are summarized in
the following table.
No car or one car Two or more cars
Homeowner
25
90
Not a homeowner
45
90
(a) what percentage of the families are homeowners?
(b) What percentage of the familles have two or more cars?
х
S
?
(b) 1%
Explanation
Check
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No car or one car Two or more cars
Homeowner
25
90
Not a homeowner
45
90
(a) what percentage of the families are homeowners?
(b) What percentage of the familles have two or more cars?
х
S
?
(b) 1%
Explanation
Check
2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy. Accessibility
1 answer:
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Answer:
1st graph: m = -1/2. (m is the slope)
2nd graph: m = 3/2.
3rd graph: Midpoint = (1/2, 1/2)
Step-by-step explanation:
1st graph:
Find the slope by looking for two points on the line. Use the formula
We can derive the points (-3, 0) and (1, -2). Plug these into the equation above.
Simplify this, giving you: m = -1/2.
2nd graph:
Use the same formula as stated above. From this graph, you can plug in the points (-1, 1) and (1, 4)
Simplifying gets you: m = 3/2.
3rd graph:
To find the midpoint, use the formula:
Plug in the end-points of the graph, or (-3, 2) and (4, -1).
You get:
Simplify:
Midpoint = (1/2, 1/2)