A watch costs $30. The equation y=30x describes the cost y of x number of watches. Identify the graph of this
1 answer:
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Answer:
y = - or - 15.75
Step-by-step explanation:
Order of operations.
y + = y -
-
Subtract y from each side.
y - y + = y - y -
-
= -
-
Add
to each side
+
= -
+
-
+
= -
Find the common denominator for
and
, which is 4
*
+
= -
+
= -
= -
Multiply each side by 3
* 3 = -
* 3
= - y Divide each side by -1
y = - = - 15
y = - 15.75