(-4,2) ;m=-1/3 You have to use this formula y=mx+b
1 answer:
Answer:
y = -1/3x +2/3
Step-by-step explanation:
We assume you want the equation of the line through the given point. The point-slope form of the equation is a good place to start.
y -k = m(x -h) . . . . . line with slope m through point (h, k)
y -2 = -1/3(x +4) . . . . . . fill in given values
y = -1/3x -4/3 +2 . . . . . eliminate parentheses, add 2
y = -1/3x +2/3 . . . . . . . simplify
You might be interested in
Given:
The leading coefficient of a polynomial is 8.
Polynomial roots are 1 and 2.
The graph passes through the point (4,5).
To find:
The 3rd root and the equation of the polynomial.
Solution:
The factor form of a polynomial is:
Where, a is a constant and are the roots of the polynomial.
Polynomial roots are 1 and 2. So, and
are the factors of the polynomial.
Let the third root of the polynomial by c, then is a factor of the polynomial.
The leading coefficient of a polynomial is 8. So, a=8 and the equation of the polynomial is:
The graph passes through the point (4,5). Putting , we get
Divide both sides by 48.
Therefore, the 3rd root on the polynomial is .