How many hundredths are in 401.308
2 answers:
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A standard-form equation for the perpendicular line will have the x- and y-coefficients swapped and one of them negated. (This gives a line with a slope that is the negative reciprocal of the original line, as is required for a perpendicular line.) Thus, you can look for an equation of the form
2x +5y = c
for some constant c that make the line go through the required point. This is matched by the 2nd selection. It also tells you the coefficients of x and y will be in the ratio 2:5. The only other choice that has coefficients like this is the 3rd choice, but it has the sign wrong.
The only appropriate selectin is
2x + 5y = -10
2x +5y = c
for some constant c that make the line go through the required point. This is matched by the 2nd selection. It also tells you the coefficients of x and y will be in the ratio 2:5. The only other choice that has coefficients like this is the 3rd choice, but it has the sign wrong.
The only appropriate selectin is
2x + 5y = -10