Functions (Graphs and Behaviour)

Hong Kong

Stage 4 - Stage 5

Which of the following functions describes a vertical line?

$x=5$`x`=5

A

$f\left(x\right)=2x+7$`f`(`x`)=2`x`+7

B

$f\left(x\right)=-8$`f`(`x`)=−8

C

$f\left(x\right)=9x-3$`f`(`x`)=9`x`−3

D

$f\left(x\right)=6x$`f`(`x`)=6`x`

E

Easy

< 1min

Which of the following functions is a constant function?

Easy

< 1min

Which of the following functions is a linear function whose graph passes through the origin?

Easy

< 1min

Which of the following functions is represented by a graph with an $x$`x`-intercept $\left(-3,0\right)$(−3,0) and a $y$`y`-intercept $\left(0,6\right)$(0,6)?

Easy

1min

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