Linear Equation Slope

Rarely Tested

Consider an equation $$ax+by=c$$. The slope of this equation is $$\frac{-a}{b}$$

The slope-intercept form $$y=mx+b$$

If the equation is in the form given above, "m" will be the slope of the given linear equation.

Question 1

For some constant real numbers p, k and a, consider the following system of linear equations in x and y:
px - 4y = 2
3x + ky= a
A necessary condition for the system to have no solution for (x, y ), is

Question 2

For what value of k do the following equations have no solution: 3x + 4y = 24 and 10x + ky = 75?

Question 3

Given that k is a negative number, for the y intercept of the line x = 9y/32 + k to be large, the value of |k| should be:

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