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# linear equation and graph of parabola

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1. Ture or false: The ordered pair (-1, 4) is a solution to the linear inequality:
-5x + 2y < = 13

2. We know that y varies directly with x, and y = 1.5 when x = 0.3. Write the linear equation relating the two variables in slope-intercept form.

3. choose the graph of the function f(x) = x^2 - 8x + 16

https://brainmass.com/math/linear-algebra/linear-equation-and-graph-of-parabola-256235

#### Solution Preview

Please see the attached file for detailed solution.

1. We can substitute -1 for x and 4 for y to the left-hand side of the inequality, which gives:
-5x + 2y = -5 * (-1) + 2 * 4 = 5 + 8 = ...

#### Solution Summary

The solution investigates various algebra questions: solution to linear inequality, graph of parabola, and linear equation.

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