Iin exercises 9-13, find the slope of each line.
9. through (1,3) and (6,2)
10. 5x=10y-5
11. x-17 = 0

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

Which of the following parabolas opens down?