If every student got one vote, but there were 25 students absent on the day of the vote, how many

Mathematics

1 answer:

kherson [118]3 years ago

3 0

Answer:

Not enough information.

Step-by-step explanation:

The 25 students absent is irrelevant. We still don't know the total number of students at Riverside Elementary School.

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The x-coordinate of the vertex of the equation y = 2x2 − 4x + 12 The x-coordinate of the vertex of the equation y = 4x2 + 8x + 3

dolphi86 [110]

So since the vertex falls onto the axis of symmetry, we can just solve for that to get the x-coordinate of both equations. The equation for the axis of symmetry is $x=\frac{-b}{2a}$ , with b = x coefficient and a = x^2 coefficient. Our equations can be solved as such:

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In short, the vertex x-coordinate's of y = 2x^2 − 4x + 12 is 1 while the vertex's x-coordinate of y = 4x^2 + 8x + 3 is -1.

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a_sh-v [17]

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