slope intercept form. y intercept the y-intercept is the point where a line crosses the y axis. at...

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Slope Intercept Form

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Page 1: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

Slope Intercept Form

Page 2: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

Y intercept The y-intercept is

the point where a line crosses the y axis.

At this point the value of x is 0.

Page 3: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

Y intercept To find the y-

intercept, plug 0 in for x in the linear equation and solve for y.

y=3x-6 (0, -6)

Page 4: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

Slope y=3x-6 To find the slope first

find 2 points. (2, 0) and (0, -6) Then substitute in and

solve

Page 5: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

Slope Intercept Formy=mx + bm isb is the

Page 6: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

Slope Intercept Form

y=3x-6

The slope is The y intercept is

Page 7: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

Slope Intercept FormTo graph y=3x-6

Plot (0, -6) then count slope Up 3 right 1 Connect your

points to make a line.

Page 8: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

Writing an EquationWrite the equation of the line with slope 3/8

and y-intercept 5.

Use slope intercept form:

Substitute in for m and b

Page 9: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

You TryWrite the equation of a line with slope -.5

and y-intercept -3y =

Write the equation of a line with slope 4 and y-intercept -5/2.

y =

Page 10: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

You TryIdentify the slope and y intercept.

y = -5x + 13Slope: Y-Intercept:Identify the slope and y intercept.

y = 1/4x – 2Slope:Y-Intercept:

Page 11: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

Writing an EquationWrite the equation of the line with slope 2 That passes through pt. (1, 4). Use slope intercept form: y = mx + b Substitute in for m Substitute in your points values for x and y Solve for b Use slope intercept form and substitute in b and m

Page 12: Slope Intercept Form. Y intercept  The y-intercept is the point where a line crosses the y axis.  At this point the value of x is 0

You TryWrite the equation of a line with slope -3

that passes through pt. (2, 5)