Write A Function Describing A Relationship
Gbogbo ọrọ náà
Real problems rarely arrive as equations. They arrive as descriptions: a taxi charges a fixed fee plus a rate per mile, a tank drains at a steady rate, a savings balance grows each year. Turning such a description into a function is one of the most useful skills in all of algebra, because once you have the function you can answer any question about the situation.
In this lesson you will write a function that describes the relationship between two quantities. You will identify the input and the output, capture any fixed amount and any rate of change, and assemble them into a clear rule in function notation.
Ebumnobi
- Write a function that describes a relationship between two quantities.
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Write A Function Describing A Relationship. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- A taxi charges $3 plus $2 per mile. Which function gives the cost C for m miles? A. C(m) = 3m + 2 B. C(m) = 2m + 3 C. C(m) = 5m D. C(m) = 6m Answer: B
- Using C(m) = 2m + 3, what is the cost of a 5-mile journey? A. $10 B. $13 C. $16 D. $25 Answer: B
- A rectangle has fixed width 4 and length x. Its area function is: A. A(x) = x + 4 B. A(x) = 4x C. A(x) = 4 + x D. A(x) = x/4 Answer: B
- In a linear model f(x) = (rate)x + (fixed value), the fixed value is the: A. coefficient of x B. constant term C. input D. output Answer: B
- Which question helps you find the rate of change? A. What stays the same? B. How much does the output change per unit of input? C. What is the largest value? D. What is the input called? Answer: B
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Write A Function Describing A Relationship? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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