By:
Yecenia
Anahi
Juanita
Cierra
Ssisly
The Slope of a line is
determined by the ratio
𝑐ℎ𝑎𝑛𝑔𝑒 𝑖𝑛 𝑦
between any
𝑐ℎ𝑎𝑛𝑔𝑒 𝑖𝑛 𝑥
two points that lie on
the line. All linear
relationships have a
constant rate of
change. The slope of a
line is what determines
how steep or flat it looks
on a graph .
Anahi Perales
 Linear Equation: an
equation whose graph
is a line
 Y-Intercept- the ycoordinate of the
point where a line
crosses the y-axis
 Slope-Intercept
Form- x=mx+b
where m=slope &
b=y-intercept
Anahi Perales
Formula for slope interceptform =
y = mx + b
RATE OF CHANGE &
SLOPE
In Algebra, slope is defined as
the rise over the run. This is
written as a fraction like this
SLOPE= RISE
RUN
Slope Formula:
SSISLY GARCIA
The rise is how much you
rise in the graph . It tells you
how much to go up or down.
The run is how much you
move to the left or right in
the graph
If line goes up from LEFT TO RIGHT
SSISLY GARCIA
, it’s called a POSITIVE SLOPE.
If line goes from RIGHT TO LEFT ,
it’s called a NEGATIVE SLOPE.
Graph a line
with a slope of 1
and a yintercept of -4
Series 3
4-5
Series 2
3-4
2-3
1-2
0-1
0
Category 1
Cierra Suire
Category 2
Category 3
Series 1
Category 4
𝐘 = 𝐗 + 𝟒 =?
Slope= 1
Y INTERCEPT = +4
Cierra Suire
The slope of a line is the ratio of the change in y
over the change in x.
Simply put, find the difference of both the y and
x coordinates and place them in a ratio.
Pick two points on the line. Because you are
using two sets of ordered pairs both having x
and y values, a subscript must be used to
distinguish between the two values.
Juanita Lozano
In general slope intercept
formula is y=mx+b.
*m-slope of a line
*b- the y-intercept
Juanita Lozano
y=5x+3 is an example of
the Slope Intercept Form
and represents the
equation of a line with a
slope of 5 and a y-intercept
of 3 .
y= −2x + 6 represents the
equation of a line with a
slope of −2 and a yintercept of 6 .
The average lifespan of
American women has been
tracked, and the model for
the data is y = 0.2t + 73,
where t = 0 corresponds
to 1960. Explain the
meaning of the slope and yintercept.
What was the slope? It is m = 0.2
because it increase by 1 in the
input variable t (that is for every
year that it increases) the value of
the output y would increase by 0.2
Yecenia Hernandez
http://www.mathwords.com/s/slope_intercept_equation_of_a_line.htm
http://www.algebra-class.com/calculating-slope.html
http://www.khanacademy.org/math/algebra/linear-equations-andinequalitie/v/slope-of-a-line
http://www.xtranormal.com/xnmm/landing/
http://www.purplemath.com/modules/slope.htm