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Gre4nikov [31]
3 years ago
9

Find the y-intercept for the parabola defined by this question: y = x2 + 7x + 6​

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

Answer:

<h2>y-intercept = 6 → (0, 6)</h2>

Step-by-step explanation:

y-intercept is for x = 0.

Substitute x = 0 into the equation <em>y = x² + 7x + 6</em>:

<em>y = 0² + 7(0) + 6 = 0 + 0 + 6 = 6</em>

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Answer:

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Step-by-step explanation:

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a) System of equation are equations (1) , (2) & (3).

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\left[\begin{array}{ccc}2.5a&4b&2c\\a&b&c\\a&-2b&-2c\end{array}\right]  = \left[\begin{array}{ccc}30\\12\\0\end{array}\right]

b) Solving the simultaneous equation,

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Substituting (5) in (4)

9 (4 - c) + 7c = 30

36 - 9c+7c =30

36-30 = 2c

c = 3

b = 4-3 = 1

a = 2(3+1) = 8

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Step-by-step explanation:

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