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f(x) & graphing

Function Notation & Graphing

True or False? <br>f(x) means f*x False. f(x) is a special symbol used to denote a function. It's read f of x.
True of False? <br>The square root of a negative number is NOT a real number True. No real number, when squared, will equate to a negative number.
Is the function f(x)=3x<sup>2</sup> linear? No. This equation cannot be written Ax+By=C and therefore its graph is not a line.
When comparing the functions g(x)=x<sup>2</sup>+10 and f(x)=x<sup>2</sup>, do you find a horizontal or vertical shift? Is the shift up, down, left or right? Since the addition is being done AFTER the squaring is done, the shift is UP by 10.
Which function will give you a V shaped graph? <br>f(x)=x<sup>2</sup> or f(x)=|x|? f(x)=|x|
In the linear equation y=mx+b which variable represents the slope? Which variable represents the y-intercept? m=slope, b=y-intercept
Which form is <br>y = mx + b? Slope intercept form.
Does the following equation represent a horizontal or vertical line? y=c Horizontal.
What do we know about the two lines if the product of their slopes is -1? The lines are perpendicular.
Re-write y=3x-1 using function notation. f(x)=3x-1
Created by: kjayska