Drawing Linear Graphs
Gbogbo ọrọ náà
A straight-line graph is the picture of a linear equation. Every equation of the form \(y = mx + c\) draws as a perfectly straight line, and being able to plot one accurately turns algebra you can only read into a shape you can see, measure and use.
In this lesson you will learn the dependable method examiners reward: build a short table of values, plot the points carefully on labelled axes, and join them with a single straight ruled line. You will see how to choose sensible x-values, how to use a third point as a built-in check, and how to avoid the small plotting slips that cost easy marks.
Ebumnobi
- Draw straight-line graphs for linear equations.
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 Drawing Linear Graphs. 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.
- Which point lies on the line y = 2x + 1? A. (1, 1) B. (2, 5) C. (3, 5) D. (0, 2) Answer: B
- For the line y = 3x - 2, what is the value of y when x = 4? A. 5 B. 10 C. 12 D. 14 Answer: B
- The equation 2x + y = 6 is rearranged to make y the subject. Which is correct? A. y = 6 + 2x B. y = 2x - 6 C. y = 6 - 2x D. y = 2x + 6 Answer: C
- A straight-line graph slopes downwards from left to right. What does this tell you about the equation y = mx + c? A. c is negative B. c is positive C. m is negative D. m is positive Answer: C
- What is the smallest number of plotted points you should use to draw a reliable straight-line graph? A. 1 B. 2 C. 3 D. 5 Answer: C
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 Drawing Linear Graphs? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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