Writing Linear Equations (y=mx+b)
Pre-Algebra · Flashcards
PRE-ALGEBRA · FLASHCARDS
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QUESTION
A gym charges a 30 dollar fee plus 20 dollars per month. Write an equation for the total cost
y
y
y
after
x
x
x
months.
QUESTION
A tank holds 240 gallons and drains 12 gallons per hour. Write an equation for the gallons
y
y
y
after
x
x
x
hours.
QUESTION
A table has
x
x
x
-values 0, 1, 2 and
y
y
y
-values 4, 7, 10. Write the equation in
y
=
m
x
+
b
y = mx + b
y
=
m
x
+
b
form.
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ANSWER
y
=
3
x
+
4
y = 3x + 4
y
=
3
x
+
4
.
y
y
y
rises 3 for each 1 in
x
x
x
, and
y
=
4
y = 4
y
=
4
when
x
=
0
x = 0
x
=
0
.
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