Which of the following is an equation of a curve that intersects at right angles every curve of the family y=(1/x)+k (where k takes all real values)?
a. y=-x
b. y=-x^2
c. y=(-1/3)x^3
d. y= (1/3)x^3
e. y=lnx

If you set the equations equal to each other, you can find common points.

So, it should be d.y= (1/3)x^3

Iwould say false, not positive but if prices went up for both stores, technically there will be less buyers?

0=6x+2y+10 is equivalent to the simplified form: y= -3x - 5• parallel lines always have the same slope, different y intercept knowing this, we can say the slope, or m of the line parallel to y= -3x - 5 is -3.m= -3 hope this could !