last quations!!!!!!!!!!!! plz answer properly!

Question

1. Complete the square to solve the equation for x: ax^2+bx+c=0. Provide a detailed account of your procedures.

2. Let r and s be numbers such that (x+r)(x+s)=x^2+8x+15.

(a)What must r*s be?

(b)What must r + s be?

3. An object is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform. The equation for the object's height, s, at time t seconds after launch is, s(t)= -4.9t^2+19.6t+58.8, where s is in meters. How many seconds after launch does the object strike the ground?

4. (Continued) How could you find the vertex of this function without relying on a calculator? What is the object’s maximum height?

5. The graph of the function f(x) = x^2 is translated (shifted) up 3 units and left 4 units. Write an equation to represent the new function after the translations.

Answer 1

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