The equation is y = 4 + x.

First find the y-intercept.

The y-intercept is the value of y, when x = 0.

y = 4 + 0                     (Substitute x = 0)

y = 4                           (Apply additive identity property: 4 + 0 = 4)

The co-ordinate point is (0, 4).

Next find the x-intercept.

The x-intercept is the value of x, when y = 0.

0 = 4 + x                     (Substitute y = 0)

04 = 4 + x4           (Subtract 4 from each side)

Apply commutative property of addition: a + b = b + a.

04 = 44 + x

04 = x                       (Apply additive inverse property: 44 = 0)

x = 4                         (Apply additive identity property: 04 = 4)

The co-ordinate point is (4, 0).

Use these ordered pairs to graph the equation.

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• Draw a coordinate plane.
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• Plot the points.
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• Draw a line through these points.
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Graph for the linear equation y = 4 + x is