i) Abscissa of the following point (-3,2). ii ordinate of the point (-5,7). iii co-ordinate of a point on x-axis is. iv co-ordinate of a point of a on y axis is ​

abscissa mean x coordinate

ordinate mean y coordinate

Step-by-step explanation:

(-3,2)=abscissa is -3

(-5,7)=ordinate is 7

coordinate of a point on x axis=(x,0)

coordinate of a point on y axis is(0,y)

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

step-by-step explanation: