Answer:
B: a = 1, b= 7, c = -2
Explanation:
Knowing This:
<u>solve for b</u>
- -b = -7
- b = 7
<u>solve for a</u>:
- 2a = 2
- a = 1
<u>solve c</u>:
- b² - 4ac = 57
- 7² - 4(1)(c) = 57
- -4c = 57 - 49
- -4c = 8
- c = 8/-4 = -2
Helppppppppppppppppppppppppp
2 answers:
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The slope of this graph is - 4
Step-by-step explanation:
The slope of a line is , where
and
are two points on the line
- The slope of a horizontal line is zero
- The slope of a vertical line is undefined
∵ The graph is a line
∵ The line passes through points (1 , -2) and (0 , 2)
∴ = 1 and
= 0
∴ = -2 and
= 2
- Substitute these values in the rule below
∵
∴
∴ m = - 4
The slope of this graph is - 4
Learn more:
You can learn more about the slope of a line in brainly.com/question/4152194
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