Question

given slope and point

write slope intercept form of equation of the line through the given point with given slope

through(-3,-5) slope= 1/2

Answer 1

slope intercept form is y = mx + b
when slope = m
so when given slope = 1/2 = m
plug in
so you get y = 1/2 x + b
then you'll have to find b
so temporarily plug in the given point (-3, -5)
so -5 = (1/2)(-3) + b
-5 = -3/2 + b
b = -3.5
so you'll get y = 0.5x - 3.5

Answer 2

or
y = mx + b
(-3,-5) x = -3 and y = -5
slope(m) = 1/2
now sub
-5 = 1/2(-3) + b
-5 = -3/2 + b
-5 + 3/2 = b
-10/2 + 3/2 = b
-7/2 = b
leaving you with the equation of : y = 1/2x - 7/2

Either way is correct, because -7/2 is the same as -3.5.

Answer 3

thanks much both of you

Answer 4

glad we could help :)