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Gabriela Castro Correa 7c
Transcript of Gabriela Castro Correa 7c
by:Gabriela Castro Correa
the plane determinated by a horizontal
number line called the x-axis, and a
vertical number line called y-axis intersecting
at a point called the origin.
what is a coordinate plane?
coordinate plane is divide in 4 cuadrants
identify the coordinates
how to plot a point in the coordinate plane
A=(4,2) here the 4=x and 2=y
everytime x is the first number
B= (-3,-5) -3=x and -5=y
a slope is a rate of change that shows how many time it take something to dcrease or increase .
4 types of slopes
postive slope (when lines go uphill from left to right)
negative slope (when lines go downhill from left to right)
zero slope (when lines are horizontal)
undefined slope (when lines are vertical)
how to find a slope !
to find a slope you take the 2 points of a line and you do this operation y2-y1/x2-x1
ANOTHER WAY TO FIND SLOPE IS COUNTIG UNITS!
MAKE A TRIANGLE BETWEEN 2 ORDERED PAIRS. COUNT THE UNITS AND REPRESENT IT AS A FRACTION (RISE/RUN)
if m=3 and b=4
the equation would be:
finding x- and y-intercepts
to find the x- intercept,
substitute 0 for y and
solve for x.
to find the y-intercept
substitute 0 for x and
solve for x.
* i improve my skills in math becasuse
i study more than ever to maka this presentation.
* i improve my skills in technology now i
make good presentation in prezi and i meet
*i really like this project because it have 3 different main programs Paint,Geogebra,Prezi.
*i learn how i can use this topics for my whole life.