Question

For the line that has the equation 4x1 + 8x2 = 88, an axis intercept is:

Answer 1

The given equation is
4x + 8x² = 88

That is,
8x² + 4x - 88 = 0
or
2x² + x - 22 = 0
The x-axis intercepts are determined by the solution of the quadratic equation as
x = (1/4) [-1 +/- √(1+176)] = 3.076 or -3.376

Answer: 3.076 or -3.376