The expression is .
\
The equation is in slope-intercept form y = mx + c.
\To graph the equation, first graph the .
According to subtraction property of equality: if , then
.
(Subtract 2x from each side) \ \
(Commutative property: a + b = b + a)
(Additive inverse property:
)
First find the y-intercept.
\The y-intercept is the value of y, when x = 0.
\ (Zero product property:
) \ \
(Additive identity property:
)
Next find the x-intercept
\The co-ordinate point is (0, 10) \ \
The x-intercept is the value of x, when y = 0.
\According to addition property of equality: if a = b, then a + c = b + c.
\ \ (Add 2x to each side) \
(Additive inverse property:
)
(Additive identity property:
)
According to division property of equality: if , then
.
(Divide each side by 2)
(Cancel common terms)
x = 5 ((Divide: )
The co-ordinate point is (5, 0) \ \
Use these ordered pairs to graph the equation.
\1. Draw a coordinate plane.
\2. Plot the points.
\3. Draw a line through these points.
\