Question

Find the equation of the line with the slope=-8 and passing through (9,7). Write your equation in point slope and slope intercept forms
Point slope form:
Slope intercept form:

HELP ASAP DOING A EXAM

Answer 1

Answer:

$y = -8x + 79\:\:and\or\:\:y - 7 = -8(x - 9)$

Step-by-step explanation:

According to the Point-Slope Formula, $y - y_1 = m(x - x_1)$, all the negative symbols give the OPPOSITE terms of what they really are, so be EXTREMELY CAREFUL inserting the coordinates into the formula with their CORRECT SIGNS:

$y - 7 = -8(x - 9)$ >> Point-Slope Form

y - 7 = −8x + 72

+ 7 + 7

____________

$y = -8x + 79$ >> Slope-Intercept Form

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