I'll give 15 points to whoever figures this out.

what is the first step in solving 3.17t - 2.431 =5 .06 ?
a) divide both sides of the equation by 3.17
b) multiply both sides of the equation by 3.17
c) add 2.431 to both sides of the equation
d) subtract 2.431 from both sides of the equation

The correct answer is

C. Add 2.431 to both sides of the equation

C.

Step-by-step explanation: Hope its correct

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this