Rosalia Perez ordered 120 pieces of jewelry: a number of bracelets at $7 each and a number of necklaces at $8 each. She wrote a
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if we look at the equation y = -2x - 1, is already in slope-intercept form, therefore, has a slope of -2.
now, parallel lines have exactly equal slopes, therefore a parallel to that one above, will have also a slope of -2, so we're really looking for a line whose slope is -2 and runs through -1, 7.