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sauravshakya Group TitleBest ResponseYou've already chosen the best response.0
Substitute y=0
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.0
and solve for x
 one year ago

emilyoo Group TitleBest ResponseYou've already chosen the best response.0
its a graph
 one year ago

emilyoo Group TitleBest ResponseYou've already chosen the best response.0
dw:1346933260713:dw
 one year ago

emilyoo Group TitleBest ResponseYou've already chosen the best response.0
how do you find the x intercept of l?
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.0
LET f(x)=0 then solve for x
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.0
In this case, 0=10^x
 one year ago

emilyoo Group TitleBest ResponseYou've already chosen the best response.0
im trying to find the x intercept of the unknown line, not f(x)=10^x
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
@emilyoo in any question intercept means the point of intersection with the respective ... In this case you want the x intercept of l... the equation of l is \[10^{x}\] Now for what value of x will will i be zero... Now apply limit to the function of yuors and solve it for infinity This will give you the x intercept of the curve...
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.0
So first find the equation of the line
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
@emilyoo Does the line and the curve intersect each other on the same point on the y axis?
 one year ago

emilyoo Group TitleBest ResponseYou've already chosen the best response.0
and at (log2,2) i think. thats all i know so far
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
thats correct, @emilyoo so now u have 2 points on that line,can u find the equation of that line?
 one year ago

emilyoo Group TitleBest ResponseYou've already chosen the best response.0
i got y1=log2(x)
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
then toy can find the equation of the line by using the two point formula of line i.e \[(yy1)=\frac{ y2y1 }{ x2x1 }\times(xx1)\] And the arrange the equation in the form x/a+b/b=1 and the value of a will be the x intercept of theline
 one year ago

emilyoo Group TitleBest ResponseYou've already chosen the best response.0
i dont understand how you change the equation in the form x/a+b/b=1... what is b supposed to represent?
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
a and b are nothing but constants. And first solve the two point equation of the line. You will get a euqation in x, y and some constant value. Now take the constant to one side of the equaltiy and x and y to the other. Divide both the sides by the constant no on one side of the equation and you will get that form
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
since u have 2 points : (0,1) and (log 2,2) let the equation be y=mx+c. put (0,1)>c=1 put (log2,2) 2=m log 2 +1 m=1/(log 2) EQUATION :y=(1/log 2)x+1 x  intercept : 0=(1/log 2)x+1 x=log 2 is the xintercept. got this ??
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
sorry divide the eqn on both the sides
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
@emilyoo did you get it now
 one year ago

emilyoo Group TitleBest ResponseYou've already chosen the best response.0
ohh...ok i got it now
 one year ago

emilyoo Group TitleBest ResponseYou've already chosen the best response.0
thank you so much
 one year ago
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