SOLUTION: Function y=5+ax+bx^2. a and b är konstant What is the value of function b on a straight line What is the value of b on a function that have 1 on the zeropoint?

Algebra ->  Linear-equations -> SOLUTION: Function y=5+ax+bx^2. a and b är konstant What is the value of function b on a straight line What is the value of b on a function that have 1 on the zeropoint?      Log On


   

Question 1037456: Function y=5+ax+bx^2. a and b är konstant
What is the value of function b on a straight line
What is the value of b on a function that have 1 on the zeropoint?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
What is the value of function b on a straight line?

y=5%2Bax%2B0%2Ax%5E2
y=5%2Bax
y=ax%2B5-------line

What is the value of b on a function that have 1 on the zeropoint?
Discriminant: a%5E2-4%2Ab%2A5=0
20b=a%5E2
b=a%5E2%2F20------Not sure if you meant to say, "has one single zero". That's what this expression is (this expression is for b to make the equation have one single "root").