have a picture of a line AB tht eq is y=4x-5 and passes through the point 9(2,3). The line BC is perp to AB and cuts the x axis at C. I need tofind the equation of line BC, which i have done, but i also need to find the x coordinate of C, but im not sure how do it? thnx
Also how could i express 3(in a square root thing)
6-3(3 again in sqr root thing)
in the form of p+q 3(in sqroot)
Iv now with the help of you great people being able to complete my practise paper and practised and found some new tips lol thnx
Somewhere BC intercepts AB
So the equations of the two lines become equal at some point.
Simplify that and you'll find that the D-value in is given by the following function:
Where the is the -axis value where the two lines cross. From there you'll find the D-value of f(x).
When you have that, set
Then solve for and you'll find the C-value that you're looking for.