Functions (Grade 10 NSC Matric Mathematics): Quizzes

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Linear Functions
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What type of graph do linear functions produce when plotted on a coordinate system?

Straight-line graphs

What is the gradient of the identity function y=xy = x?

11

In the standard form y=mx+cy = mx + c, what does cc represent?

The y-intercept

If m>0m > 0 in y=mx+cy = mx + c, how does the graph slope?

Upward from left to right

What type of line results when m=0m = 0 in a linear function?

Horizontal line

What is the domain of any linear function f(x)=mx+cf(x) = mx + c?

All real numbers

To find the y-intercept of a linear function, what should you do?

Set x=0x = 0 and solve for yy

To find the x-intercept of a linear function, what should you do?

Set y=0y = 0 and solve for xx

What two points does the dual intercept method use to sketch a linear graph?

x-intercept and y-intercept

For f(x)=x−1f(x) = x - 1, what is the y-intercept?

(0,−1)(0, -1)

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