Answer:
(1) The coefficient of x in this expression is -10.
(2) The value of the expression for x = 15 is -9.
Step-by-step explanation:
(1)
A coefficient is a numerical value that is placed before a variable or is multiplied by the variable in an algebraic equation.
For example, in the algebraic equation 4x² + 5y the coefficient of variable y is 5.
The expression given is:
1 - 10 x + 4 y
The coefficient of x in this expression is -10.
(2)
The expression provided is:
[tex]f(x)=\frac{1}{5}x - 12[/tex]
Compute the value of the expression for x = 15 as follows:
[tex]f(x)=\frac{1}{5}x - 12\\=(\frac{1}{5}\times 15) - 12\\=3-12\\=-9[/tex]
Thus, the value of the expression for x = 15 is -9.
