y=x^42-32x^2-x y' = 42x^41 - 32(2)x - 1 y' = 42x^41 -64x-1
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Clamor derivitives
Substitute y = mx + b into the equation and then use the fact that there must a double root (at infinity)
Since there is no information on what -125 is, nor the units (if any) that are used in the measurement, it is not possible to answer the question.
You set x = 0 and evaluate the polynomial. Note that this should be "y-intercept" in the singular, not in the plural.
if you make a t chart with the x and y, you can find functions. the change in y is the number in front of the x (multiplying) and if you find the x at 0, the y will be what you add. here: y=3x + 1 the 3 is the change in y the + 1 when you have (0, 1) as a point. subistite the axis of symmetry into the original problem and solve for y. inentify the vertex