The value of the function f(x) at x = -3 is -7.
The given function is [tex]f(x) = 4x + 5[/tex]
Need to determine the functional value at [tex]x= -3[/tex] that is [tex]f(-3)[/tex].
Substitute -3 for x in f(x) and solve it further.
[tex]f(-3) = 4 \times -3 + 5\\=-12+5\\=-7[/tex]
Hence the value of the function f(x) at x = -3 is -7.
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