Find the y-intercept of the straight line
passing through the point P = (5, 3) and
perpendicular to
y + 5x = 1 .
a. y-intercept = −2
b. y-intercept = −4
c. y-intercept = 2
d. y-intercept = 4
e. y-intercept = 9/5

Question

Find the y-intercept of the straight line
passing through the point P = (5, 3) and
perpendicular to
y + 5x = 1 .
a. y-intercept = −2
b. y-intercept = −4
c. y-intercept = 2
d. y-intercept = 4
e. y-intercept = 9/5

anonymous · Answer

Perpendicular means Product of their Slopes = -1 ie m1*m2=-1

anonymous · Answer

y + 5x = 1 

y=-5x + 1

slope = -5

-5 * m2 = -1

m2 = 1/5

anonymous · Answer

Nw use Point Slope form....

anonymous · Answer

y=-5x+1/5?

anonymous · Answer

y-3=1/5 ( x-5)

y-3 = x/5-1

y=x/5 + 2

so...y intercept = 2