find the point of intersection of the two graphs
plot the graphs of both equations on the same coordinate plane.find and label the points of intersection of the two graphs
Y=-2X+3
Y=-2(X-4)^2
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Parth (parthkohli):
This is merely a system of equations.\[-2x + 3= -2(x - 4)^2\]by substitution
OpenStudy (anonymous):
equate two functions
OpenStudy (anonymous):
parthkohli and how to change to general form?
OpenStudy (anonymous):
is this correct -2x+3=-2(x-4)^2
-2x^2+18x-13=0
OpenStudy (anonymous):
probably not, try again
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OpenStudy (anonymous):
-2x^2+18x-35=0
OpenStudy (anonymous):
so it is a quadratic equation,and we solve by the root formula right?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
@lissafi , note that when you equate two functions, you can find x intersections as well as y intersections
OpenStudy (anonymous):
here above, you will find x intersections, to find y, reformulate each equation so that it starts with x=...., but, beware there you have a square, so you can lose information by reformulation
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OpenStudy (anonymous):
what is the square root of 386?
OpenStudy (anonymous):
@lissafi, do you have a calculator?
OpenStudy (anonymous):
is too hard for me
OpenStudy (anonymous):
x=(-18+/-root(604))/-4
OpenStudy (anonymous):
+/- means that: + or -
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