Loading...
Digital SAT
Digital SAT Mathematics - No Calculator Section

Finding the X-Intercepts of a Quadratic Function

Medium Passport To Advanced Math Quadratic Equations

A quadratic function is defined by the equation:

$$f(x) = 2x^2 - 4x - 6$$

To find the x-intercepts of the parabola represented by this function, perform the following:

(1) Set the function equal to zero, i.e., $$f(x) = 0$$.

(2) Solve for $$x$$ using the quadratic formula:

$$x =\frac{-b ext{±} ext{√}(b^2 - 4ac)}{2a}$$

where $$a = 2$$, $$b = -4$$, and $$c = -6$$.

Calculate the x-intercepts and provide your answers as a grid-in, listing both x-intercepts in order from least to greatest.

Answer Preview:

Hint

Submitted2.1K
Correct1.4K
% Correct69%