Answer:
I believe it is D at least I hope so
The functions b,d, and f have complex roots{ as the graph has no intersections with the x-axis}
Function: A function is defined as a relationship between a set of inputs that each have one output. A function is a relationship between inputs in which each input is related to exactly one output. Every function has a domain and a codomain, as well as a range. In general, a function is denoted by f(x), where x is the input. A function's general representation is y = f. (x).
Complex roots: Complex roots are the fictitious roots of equations represented by complex numbers. Because taking the square root of a negative number is impossible, we convert it to a complex number.
In the shown figure the functions b,d and f do not touch the x-axis which means it has complex roots {image attached}
Therefore, The function b,d, and f have complex roots{ as the graph has no intersections with the x-axis}
Learn more about function here:
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Answer:
(x,y)=(-1,-4)
Step-by-step explanation:
-4x + y = 0
+4x +4x
y=4x
-5x - 2y = 13
+5x +5x
-2y = 5x+13
-2(4x) = 5x+13
-8x=5x+13
-5x -5x
-13x/-13=13/-13
x=-1
Thus:
y=4x
y=4(-1)
y=-4
A. 10/15
b. 7/8
those r the answers