Geometry

which figure represents the image of trapezoid lmnp after a reflection across the x-axis?

figure a
figure b
figure c
figure d

Consider trapezoid LMNP with vertices at points (-2,3), (-2,6), (-1,6) and (-1,4), respectively.

The reflection across the x-axis has a rule:

(x,y)→(x,-y).

Then

As you can see points L', M', N' and P' form trapezoid L'M'N'P' and this is exactly figure A.

correct choice is A.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.