So the domain<span> is "all </span>x<span>". To </span>find<span> the </span>domain, I'll ignore the "x<span> + 2" in the numerator (since the numerator does </span>not<span> cause division by zero) and instead I'll look at the denominator. I'll set the denominator equal to zero, and solve. The </span>x-values<span> in the solution will be the </span>x-values<span> which would cause division by zero.</span>
Answer:
option 2
Step-by-step explanation:
Substitute x = - 5 into f(x) , that is
f(- 5) = 4(- 5) - 7 = - 20 - 7 = - 27
Answer:
6
Step-by-step explanation:
y = 2x + b/y=mx+c use this equation to solve the sum
using y=mx+c to solve the sum
y=2, x=-3 and m=4/3
after putting and simplifying the eq we get the value of m
The coefficients of the polynomial are rational, which means that any non-real roots occur alongside their complex conjugates. In this case, 6+<em>i</em> is a root, so 6-<em>i</em> is also a root.
So the simplest polynomial you can build with these roots is
(<em>x</em> - (-5)) (<em>x</em> - (6 + <em>i </em>)) (<em>x</em> - (6 - <em>i</em> )) = <em>x</em> ^3 - 7<em>x</em> ^2 - 23<em>x</em> + 185
(first choice)
