Position its base on the x axis in order to find its perpendicular height by means of the y axis.
You cannot: you need to know the axis or point of reflection.
For a given coordinate pair. A reflection in the y-axis is making the 'x' term negative. e.g. ( a,b,) ' (-a, b). Similarly for a reflection in the x-axis is making the 'y' term negative. e/.g. ( c,d) ; ( c,-d).
change the y value to -y, and bring the negative over the equal sign. example. y=2x^2 reflected on the x-axis looks like y=(2x^2)/-1 which is equal to y=-(2x^2)
Replace x by -x.
Yes.
reflect across the y-axis
Since the x coordinate will change, but not the y coordinate, take (x,y) and reflect across the y axis and you have (-x,y)
You change the value of y to -y. ex: (4,5) reflected over the x-axis is (4,-5)
Reflect the chart in the line y = x.
The bit with the negative x-axis goes to the positive x-axis.
the price of goods on the x axis in terms of the good on the y axis
Replace each point with coordinates (x, y) by (-x, y).
To reflect a point in the x axis, multiply it's y coordinate by -1. Example: (x, y) over the x axis is now (x, -y), If you come across the y already being a negative, then make it a positive, (x, -y) = (x, y). The x stays the same, and vice versa over the y axis. Hope I helped. I am also having trouble with this, though, What if there is a zero? (5,0), it can't be (5, -0) can it?
An impedance triangle has resistance (always positive) in the x axis and reactance (at a right angle to resistance) in the y axis. The line that completes this triangle (the hypotenuse) is the absolute value of the impedance.
count the spaces on your graph until you reach the y axis then start over and count again till you count the same number that you it took you to reach the y axis... sounds kinda confusing.... but good luck !
Position its base on the x axis in order to find its perpendicular height by means of the y axis.