1,063 Answered Questions for the topic Pre-Calculus
06/06/22
Find all zeros of the polynomial P(x)=x3−3x2−9x−5. Its zeros are x1= , x2= and x3= with x1≤x2≤x3.
06/05/22
Give all zeros of P(x)=x3+9x. I solved and got 0,3,-3 but I'm told these are incorrect zeros.
05/30/22
The graph of f(x)=x2−2x−3 is shown above. a) Determine the x-intercepts of the graph. (Note: List the value(s) of x separated by a comma.) b) Find the solution(s) for: x2−2x−3=0
The graph opened upwards with a vertex on (1,-4). Not sure if this is needed but included it since the graph image was too large to include with this description.
05/30/22
Find the zero(s) of S(p)=3p−4p2.
05/28/22
Use synthetic division to determine if the given value for k is a zero of this polynomial. If not, determine p(k).
Use synthetic division to determine if the given value for is a zero of this polynomial. If not, determine p(k).p(x)=3x^2−(5−5i)x+(28−20i);k=−4i
05/20/22
Find all the critical numbers of the function. Find the open interval on which the function is decreasing or increasing and locate all relative extrema.
Find all the critical numbers of the function. Find the open interval on which the function is decreasing or increasing and locate all relative extrema.
f(x)=x^2(3-x)
f(x)=x^4-2x^2/3x
05/20/22
Find the open interval on which the function f(x)=x^2/x+1 is increasing or decreasing
Find the open interval on which the function f(x)=x^2/x+1 is increasing or decreasing
05/20/22
Find the open interval on which the function f(x)=x^4-3x^2+5x is increasing or decreasing
Find the open interval on which the function f(x)=x^4-3x^2+5x is increasing or decreasing
Pre Calculus
05/18/22
A parabola can be drawn given a focus of ( 6 , 8 ) (6,8) and a directrix of x = 10 x=10. What can be said about the parabola?
05/14/22
surface area of a sphere is S(x) = 4πx2
The surface area of a sphere is S(x) = 4πx2, where x is the length of the radius of the sphere. Restrict the domain to create a one-to-one function. Find and describe the inverse function.
05/04/22
Let f (a function)
Let f be a function such that . Which statement best interprets this limit?The function f has a value of –5 when x is 5.The function f has a value approaching –5 as x approaches 5.The...
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