Mathematics, 08.12.2020 01:50 sullivanjakob
Doran wants to graph g(x) = 4x^2 - 24x + 7. He ends up with the graph
shown. He knows it will have a y-intercept at (0,7), because c=7. He knows
that -b/2a will give him the axis of symmetry, or the x-coordinate of the
vertex. When he calculates -b/2a, he gets -3. which he substitutes back
into the function, and gets 115. He puts those together, for a vertex of (-3,
115). However, that isn't the vertex on his graph. What mistake did Doran
make, and what result should he have gotten? Explain clearly, referring to
the axis of symmetry, and vertex of the parabola specifically, and
numerically. *
Answers: 1
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Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?
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Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30
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Doran wants to graph g(x) = 4x^2 - 24x + 7. He ends up with the graph
shown. He knows it will have...
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