Write an equation in slope-intercept form?

Question

write an equation in slope-intercept form
m = -3; y- intercept (0, -2)
correct answer is y= -3x-2 (please help me understand how this is done????)

Answer 1

y=mx+b
slope -3 means m=-3
y=-3x+b intercept i2 means b=-2
y=-3x-2

Answer 2

m here means the slope... in this case it is -3. that is why u have the -3x in the solution. the intercept is 0,-2. meaning that the line crosses the graph where y is -2 and x is 0. we always put the y intercept in the equation as well. so because of the slope of -3 and the y intercept given of -2 the equation becomes y=-3x-2. we apply the y=mx+b form where m is the slope and b is the y intercept
hope that helps a little

Answer 3

the slope intercept form is
y = mx + b
where m is your slope and b is your y intercept.
Y intercept is where the line crosses the y-axis.
Slope (m) is the rise over run meaning how many spots up or down and left or right.
In our case m = -3 (-3 = -3/1 = 3/-1) meaning 3 spots down and 1 spot to the right or 3 spots up and 1 spot to the left.
The y-intercept is given as a coordinate (0, -2) stand coordinate form is (x, y). So when x is zero we are directly on the y axis but where?- that's what the y tells you in the (x, y) coordinate tells you.

If you need further clarification or help im me or email me. Good Luck.

Answer 4

Okay! The formula for slope is "y=mx+b"

m is the slope, sometimes written in fraction-form unless it is a whole number only(in this case, -3/1 is = -3)

b is the y-Intercept. You can find it by looking to where the sloping line meets the y-axis on a graph. graph equation points are "(x,y)" and since this intercept is for y, the second number would be used in that.

So if slope(m)=-3
And y-intercept(b)= (0,-2) which is a point on x0 and y-2. This would be -2
And if the formula for slope intercept is "y=mx+b"

Then you just have to plug this information in.
(Just wait until you have to graph this stuff! ;-D)

Answer 5

Slope intercept form means the form y=m*x + b. Recall that m is the slope and b represents the intercept which is the point where the line crosses the y-axis. Thus, if the line crosses the y-axis, x=0 at that point.

All the information is given, all you have to do is fill in the blank: y=-3*x-2.

Answer 6

slope intercept form is given by

x/a + y/b =1

a= x intercept
b= y intercept= -2(as per question)


also another form of the equation is given by

y-b=m(x-a)

where (a,b) is any point on the line(it is given in the question as (0,-2)
put values of a and b in this above equation

a = 0
b= -2

that's given in the question

y+2= - 3 (x-0)
y = -3x - 2

Answer 7

The slope-intercept form of a line looks like:
y = mx + b
where m is the slope and b is the y-coordinate of the y-intercept. Therefore, m = -3, b = -2, and y = -3x - 2

Answer 8

y = -3 x - 2

The y-intercept is where the line crosses the vertical y axis. That's where x = 0. You substitute x=0 for x and find that y = -2. The m represents the slope which is the rise divided by run or (y1 - y0)/(x1 - x0). This is represented by the variable m and the slope-intercept for is y = m x + b.

Answer 9

ok ur having a problem getting from point-slope to slope-intercept.

heres what you need to do

plug ur values into this equation

y - y value from the problem = m(x - x value from problem)

solve for y in terms of x

y = mx -m(xgiven) + y given

Answer 10

y-y1=m(x-x1) so y-(-2)=-3(x-o)

y+2=-3x

y=-3x-2