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jok3333 [9.3K]
3 years ago
14

Is (6, 9) a solution of y > 5x + 1?

Mathematics
2 answers:
dimulka [17.4K]3 years ago
3 0
X = 6
y = 9

9 > 5(6) + 1
9 > 30 + 1
9 > 31  (False)

No, (6,9) is not a solution for y > 5x + 1

hope this helps
weqwewe [10]3 years ago
3 0
Hey there,

y > 5x + 1 (6,9)

You plug 9 in for y and 6 for x

9 > 5(6) + 1

9 > 30 + 1

9 > 31

No that is not the solution because 9 is not greater than 31

Hope I helped :)

~Char
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The y coordinate of the vertex of f (x)=-x^2+8x+7 is f(4)
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To answer this question, we need to remember some properties about the vertex of quadratic functions.

Let f(x)=ax^2+bx+c,~a\neq0. Its vertex can be found on the coordinates (x_v,~y_v) such that x_v=-\dfrac{b}{2a} and y_v=-\dfrac{b^2}{4a}+c, in which y_v=f(x_v).

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