To which subsets of the real numbers does the number √42 belong?
2 answers:
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When the sign is ≤ or ≥ ("less/greater than <u>or equal to</u>"), the line is a solid line.
When the sign is < or >, the line is a dotted line.
The inequality will be similar to the slope intercept form:
y = mx + b
"m" being the slope, "b" being the y-intercept(when x = 0)
Except there is no equal sign.
The slope(m) can be found by using the slope formula, or:
Rise is the number of units you go up or down, run is the number of units you go to the right.
Based on the graph, you go up 2 units, and to the right 5 units. Your slope is 2/5. When x = 0, y is -1, so your y-intercept is -1.
y ? 2/5x - 1
The shaded area is below the line, this means that "y" is less than the equation (2/5x - 1)
Your inequality is: