一次函数 (yīcìhánshù): linear function (math)

Measure Word

一个一次函数 gè

Meanings

1 linear function (math)
2 first-degree function

Characters

Examples

y = 2x + 3 是一个一次函数。

y děngyú èr x jiā sān shì yī gè yīcìhánshù.

y = 2x + 3 is a linear function.

一次函数的图像是一条直线。

Yīcìhánshù de túxiàng shì yī tiáo zhíxiàn.

The graph of a linear function is a straight line.

Tips

memory

一次 means 'first power' (degree one), so 一次函数 = degree-one function = linear. 二次函数 (èrcì hánshù) is then 'degree-two' = quadratic.

Stroke Order

一 yī

次 cì

函 hán

数 shù

Related Words

一次性 yīcìxìng HSK 6 #9,031

disposable; single-use / one-off; one-time

次数 cìshù HSK 6 #8,063

number of times; frequency; count

一流 yīliú HSK 5 #5,200

top quality / first-rate / first-class

一级 yījí #6,664

first level / first class / grade one / primary (level)

倒数 dàoshǔ HSK 7 #4,209

to count backwards; to count down / inverse number; reciprocal (math)

数学 shùxué #3,030

mathematics / math

一来 yīlái #8,565

firstly; for one thing; in the first place / (used with 二来) on one hand... on the other hand

第一 dìyī #223

first / number one / primary; foremost

一大早 yīdàzǎo HSK 7 #8,743

early in the morning / first thing in the morning

首次 shǒucì HSK 6 #38,654

for the first time / first (occurrence)