Rewrite the correct option in your answer sheet. 1. If the demand equation for a certain commodity is Q = a – bP, then the expression for elasticity of demand is a) Qd P/dP dQd b) Qd P/ dQd dP c) P Qd dQd dP d P Qd/ dP dQd​

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

4

step-by-step explanation:

b.-4 units

all you   do is count how many times you move

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.