105. DISCUSS: A Family of Equations The equation 3x + k – 5 = kx – k + 1 is really a family of equations, because for each value of k, we get a different equation with the unknown x. The letter k is called a parameter for this family. What value should we pick for k to make the given value of xa solution of the resulting equation? (a) x = 0 (b) x = 1 (c) x = 2
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
DISCUSS: A Family of Equations The equation
3x k 5 kx k 1
is really a family of equations, because for each value of k,
we get a different equation with the unknown x. The letter k
is called a parameter for this family. What value should we
pick for k to make the given value of x a solution of the
resulting equation?
(a) x 0 (b) x 1 (c) x 2
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