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Mathematics
15.03.2020 08:23
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Let f(x) = x^2 + x - 2 and g(x) = x - 1. perform the function operation and then

Let f(x) = x^2 + x - 2 and g(x) = x - 1. perform the function operation and then find the domain.

(f + g)(x) =

what is the domain?
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sierravick123owr441
sierravick123owr441
4,8(51 marks)
That is f(x)+g(x)
or
x^2+x-2+x-1=x^2+2x-3
the domain is the numbers we can use
it is all real numbers
haru8355
haru8355
5,0(84 marks)

{ \boxed{ \bf {general \: equation : y = mx + c}}} \\ m \: is \: the \: slope \\ { \green{slope = \frac{ \triangle \: y}{ \triangle \: x} }} \\ m = \frac{(4 - 5)}{(3 - ( - 2))} \\ m = - \frac{1}{5} \\ \therefore \: { \red{y = - \frac{1}{5} x + c}} \\ consinder \: the \: first \: point : \\ 5 = ( - \frac{1}{5} \times - 2) + c \\ c = \frac{23}{5} \\ \therefore \: { \boxed{ \bf{answer : 5y = - x + 23}}} \\ \\ { \underline{ \blue{ \tt{becker \: jnr}}}}

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