A straight line tangent to a curved line at a point
a. crosses the curved line at that point
b. crosses the curved line at many points
c. has the same slope as the curved line at that point
d. is steeper than the curve at all other points
e. has a smaller slope than all other points on the curve
Question 2
A line is tangent to a curve if it
a. crosses the curve at one point
b. touches the curve at one point, without crossing it
c. crosses the curve at a minimum of two points
d. never touches the curve
e. forms a right triangle with the curve
One-point linear perspective.
Surgical needle shapes: (A) taper point; (B) cutting point.
Dew point/temperature relationships in (a) unsaturated air and saturated air (b and c).
The results of reciprocal crosses between streptomycin-resistant and streptomycin-sensitive
Curved spines make cocklebur (Xanthium) fruits stick to the fur of animals (and clothing of humans)