Question

Find the equation of a line with a given slope and y-intercept : slope-3/5,y-intercept(0,2)

Answer 1

y = mx + b
m is your slope and b is your y intercept
can you solve it now ?

Answer 2

just sub in -3/5 for m and 2 for b and what do you get ?

Answer 3

this is what I got -3x+0

Answer 4

no....y = -3/5x + 2

Answer 5

Oh I know why becos 5y-10=-3x+0
3x+5y=10
so you simplify it

Answer 6

I just subbed in the values
your slope -3/5 goes in the m position
your y intercept, 2, goes in your b position

y = mx + b

if I was to say you had a slope of 3 and a y intercept of (0,6)
then your equation would be : y = 3x + 6

does that make sense ?

Answer 7

Oh okay

Answer 8

or...
y - y1 = m(x - x1)
slope(m) = -3/5
(0,2) x1 = 0 and y1 = 2

now lets sub
y - 2 = -3/5(x - 0)
y - 2 = -3/5x - 0
y = -3/5x + 2

standard form would be :
Ax + By = C
3/5x + y = 2
3x + 5y = 10

you can use either formula and you will get the same answer

Answer 9

I just use the same formula that you gave me to solved this :
Find the slope intercept form of the equation of a line with the given slope that passes through the given point. slope -1,through (-6,-3)
And this is what I got Y=-1 x-9

Answer 10

for this one, you need to use y - y1 = m(x - x1)
slope(m) = -1
(-6,-3) x1 = -6 and y1 = -3

now lets sub
y - (-3) = -1(x - (-6)
y + 3 = -1(x + 6)
y + 3 = -x - 6
y = -x - 6 - 3
y = -x - 9 (this is the same as y = -1x - 9)

you got it :) you are correct

Answer 11

Thats makes me happy ,I am doing my best to know Algebra ,I am good in basic math and Very good in English ,Economics and business management

Answer 12

sounds like you got your hands full. You seem smart, I believe you can handle it.
Good job and keep up the good work :)

Answer 13

Thank you so much and the reason is because it been 7 years that i did math in High and when I was in college in my country I didn't do any math but statistic and economics