If a triangle has vertices of 
and 
then the area of the triangle is given by 
Find the area of the triangle with vertices at the given points.(1, -3) (1, 1) (4, 3)
A. 6
B. 2.5
C. 12
D. 5
Answer: A
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If the scale factor of a parallelogram is 7, then what can we say about the perimeter of the dilation? ?
A. ?The perimeter will be seven times the original parallelogram. B. ?The perimeter will be seven more than the original parallelogram. C. ?The perimeter will be the same as the original parallelogram. D. ?The perimeter will be 1/7 of the original parallelogram. E. ?The perimeter will be 1/7 more than the original parallelogram.
Find the absolute maxima and minima of the function on the given domain.
on the trapezoidal region with vertices 
and 
A. Absolute maximum: 12 at 
absolute minimum: 6 at 
B. Absolute maximum: 13 at 
absolute minimum: 0 at 
C. Absolute maximum: 13 at 
absolute minimum: 6 at 
D. Absolute maximum: 14 at 
absolute minimum: 0 at 
Without graphing the function, determine its amplitude or period as requested.y = 2 cos 
xFind the period.
A. 2
B. 
C. 
D. 6?
Determine whether the given number is approximate or exact.Susan's new car gets 16 miles per gallon of gasoline.
A. Approximate B. Exact