Question
Two lines with the slopes m1=4/3 and m2=-7/2 intersect at (3,4). Determine the equations of the two lines and check your answer by solving them
Answers
Sara
no clue how to answer it. I put each slope into the y=mx+b formula and found the b values, but i'm not sure if i'm supposed to do that
Steve
It helps if you show what you did.
The two lines, in point-slope form are
y-4 = 4/3 (x-3)
y-4 = -7/2 (x-3)
You don't always have to use y=mx+b. clearly, the two values for b are
0 and 29/2
With those, how could you not know what to do next? Knowing the slopes, you just write
y = 4/3 x
y = -7/2 x + 29/2
The two lines, in point-slope form are
y-4 = 4/3 (x-3)
y-4 = -7/2 (x-3)
You don't always have to use y=mx+b. clearly, the two values for b are
0 and 29/2
With those, how could you not know what to do next? Knowing the slopes, you just write
y = 4/3 x
y = -7/2 x + 29/2