standard_description: Understand a rational number as a point on the number line. Extend number line diagrams and coordinate axes familiar from previous grades to represent points on the line and in the plane with negative number coordinates.
problem_activity: For each verbal expression below, write an algebraic expression.
a.   Four times the difference of 8 and
$$x$$
.
b.   Twice
$$m$$
increased by the square of
$$n$$
.
c.   The sum of 10 and the quotient of
$$x$$
and 4.
d.   The product of the square of
$$n$$
and
$$m$$
, subtracted from 5.


aligns: no