Answer:
41. <u>(2) x² - 3x - 4 =0</u>
Step-by-step explanation:
<u>Question 41</u>
<u>Standard form of polynomial</u>
- x² - (sum of roots) + product of roots = 0
- <u>(2) x² - 3x - 4 =0</u>
Answer:
A: (1,3)
A': (1,-3)
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B: (5,1)
B': (5,-1)
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C: (-2,2)
C': (-2,-2)
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D: (-5,4)
D': (-5,-4)
Hope it helps, sorry I was late; just got around to this lesson.
Answer:
I think it might be a I don't know for sure though I just need some more points so I can ask a question myself sorry if this didn't help
Answer:
3. 7/12.
4. 7/5.
5. 1.
Step-by-step explanation:
The slope of a line can be obtained by taking the ratio of change in y-coordinate to that of x-coordinate. Mathematically, it is expressed as:
Slope = Δy /Δx
Δy = y2 – y1
Δx = x2 – x1
With the above formula in mind, let us answer the questions given above.
3. Point => (–8, –2) (4, 5)
x1 = –8
x2 = 4
Δx = x2 – x1
Δx = 4 – –8
Δx = 4 + 8
Δx = 12
y1 = –2
y2 = 5
Δy = y2 – y1
Δy = 5 – – 2
Δy = 5 + 2
Δy = 7
Slope = Δy /Δx
Slope = 7/12
4. Point => (3, –5) (8, 2)
x1 = 3
x2 = 8
Δx = 8 – 3
Δx = 5
y1 = –5
y2 = 2
Δy = y2 – y1
Δy = 2 – – 5
Δy = 2 + 5
Δy = 7
Slope = Δy /Δx
Slope = 7/5
5. Point => (–4, –5) (4, 3)
x1 = –4
x2 = 4
Δx = x2 – x1
Δx = 4 – –4
Δx = 4 + 4
Δx = 8
y1 = –5
y2 = 3
Δy = y2 – y1
Δy = 3 – – 5
Δy = 3 + 5
Δy = 8
Slope = Δy /Δx
Slope = 8/8
Slope = 1
The answer would be 19
Range is basically just taking the highest and lowest number which in this case is 61 and 42 and then subtracting which gives you 19. Hope this helps!
