A+ Answers



1 Find the slope of the line having x intercept: 3 and passing through the point (4, -9).
2 Find the domain of the following functions

a) f(x) =(x+1)/(x2 -6x+5)         

b) f(x) = (x+11)/(x2 -64)
c) f(x) = (5x+1)/(x2 +9)
3. Find the center (h, k) and radius r of the circle x2 + y2 +4x – 9y + 4 = 0
4. Find the x-coordinate for the vertex of f(x) = -3×2 + 12x + 1.8.
5. Find the function that is finally graphed after the following transformations are applied to the graph of y = x2

6. Determine whether the following is symmetric with respect to the x axis, the y- axis, the origin?

a) y = x2 – x4 + 9       

b) y = x3 – x4              

c) y = x3 – x5                             

d) y4 = 1 – x2                             

e) y2= x + 1