Which of the following is an equation of the line that passes through (3, −5) and has a slope of 2?
y = mx + b slope(m) = 2 (3,-5) x = 3 and y = -5 now we sub and solve for b, the y intercept. -5 = 3(2) + b -5 = 6 + b -5 - 6 = b -11 = b your equation is : y = 2x - 11 any questions ? This could have also been solved using the point slope formula.
Lol you didnt give me time to post the answer choices
A. y + 5 = 2(x − 3) B. y − 5 = 2(x + 3) C. y − 5 = 3(x − 2) D. y + 5 = 3(x − 2)
oh.....got to use point slope...here we go y - y1 = m(x - x1) slope(m) = 2 (3,-5) x1 = 3 and y1 = -5 now we sub y - (-5) = 2(x - 3) = y + 5 = 2(x - 3) ==> here you go I was just about to say in the above post that I do not use point slope form unless specifically asked...lol....I guess this one specifically asked...
if you have any questions please ask. Sometimes the positive and negative signs can trick you if you are not careful.
yeah its just that i hadnt done this in so long but i got what you did there
good to hear. It is not really that hard as long as you post the right number in the right spot and pay attention to your signs
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