Question

write the equation of the line that passes through (2,5) with a slope of 3 in point slope form

Answer 1

you need to use the formula y = mx + b

Answer 2

ok and what do i do after i have the formula

Answer 3

i really dont understand this norr know how to use the formula so plz help

Answer 4

this is how you read the formula
y = mx + b
y = a point
x = a point
m = slope
b = y- int

Answer 5

so you have slope = 3 = m, points (2,5) which is (x,y), now you need to find the value of b

Answer 6

can you do that

Answer 7

no not really

Answer 8

wouold the 5 replace the y ?

Answer 9

well just plug in the points and the m (slope) as follows:
y = mx + b
5 = 3(2) + b can you solve for b

Answer 10

would it be -1

Answer 11

correct, now when they ask you the equation of the line, what the question is asking you is for the formula of y = mx + b, then only thing you need to find is the m and the b

Answer 12

so since you have m = 3 and b = -1
then the equation of the line would be y = 3x -1

Answer 13

the reason why you don't have values for (x,y), because a line have many points, so the equation of the line (not the point) is written as y = 3x -1, when you have a slope of 3 and passes through those points

Answer 14

o ok .. thank you so much i would have never know what to do if it wasnt for you