Project 11: Get Y for Quadratic

Another example: A quadratic equation is an equation that can be written in the form is y = ax² + bx + c with a, b, and c being constants, or numerical coefficients, and x an unknown variable.

A graph of a quadratic is shown below where a = 1, b = -3, and c = -4

Question: What is the y-coordinate when x = 2 for the quadratic shown below?

Answer: -6

We can see the point (2, -6) on the graph pretty easily.  However, if we substituted x = 2 into the equation we would also obtain y = -6.

y = (2)² - 3(2) – 4

y = 4 – 6 – 4

y = -6

Project 11: Your program has initialized variables 'a', 'b', 'c', 'x'

a, b, and c are the coefficients of the quadratic.

x is the value that we want to calculate the corresponding y-value (2 in the example above).

Your task: Appropriately initialize a variable called 'y' that corresponds to the y-value for the quadratic at the given x.

**If your code works for 5 test cases, you can enter your e-mail address

Universal Computational Math Methods:

pow(5,2) returns 25.0

abs(-3.0) returns 3

sqrt(49.0) returns 7.0