Question

Can someone please help me

Write an equation in point-slope form for the line. Y=mx+b

Answer 1

Let’s first know what y=mx+b is.

M= slope

B=y-intercept

Since the problem gives us the slope, we can add it in already, which helps us a lot.

y=4x+b

This problem gives us a coordinate. We can substitute the numbers with the values.

3=4(1)+b

3=4+b

-b=4-3

-b=1

b=-1

Now that we have the y-intercept, we now have the hard parts done and now all we do is put it together.

Answer: y=4x-1

To see if it is correct, we can substitute numbers in (like the coordinate) to see if it was right.

3=4-1

3=3

There is your answer!

Answer 2

first you have your slope or m which is 4
so your equation so far is

`y = 4x + b`
to find b you use the point that was given which is (1,3), you substitute that in the equation which gives you

`3 = 4(1) + b`
solve this equation which is