Respuesta :
Value of k = 9
What is expression?
Expressions is the defined as mathematical statements that have a minimum of two variables.
Given ,
f(x) = -2x+8
put x = k in the given expression
f(k) = -2k+8
∵ f(k) = -10 is given
∴ -10 = -2k+8
k = 9
Learn more about expressions.
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