Green Bridge Learning Resource Nchekwa Maka Parallel Lines

Gbogbo ọrọ náà

Parallel lines run in the same direction and never meet, and in coordinate geometry that single fact has a neat consequence: they have exactly the same gradient. That makes finding the equation of a line parallel to a given one quick and reliable.

In this lesson you will find the gradient and equation of a straight line parallel to a given line, using the key idea that parallel lines share a gradient.

Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Parallel Lines. 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.

What is true of the gradients of two parallel lines? A. They are equal B. They multiply to -1 C. They add to 0 D. One is zero Answer: A
Which line is parallel to y = 2x + 1? A. y = 3x + 1 B. y = 2x + 5 C. y = -2x + 1 D. y = x + 2 Answer: B
A line parallel to y = 3x - 4 has gradient: A. -4 B. -1/3 C. 3 D. 4 Answer: C
The line parallel to y = 2x + 1 through (0, 5) is: A. y = 2x + 5 B. y = 5x + 2 C. y = 2x + 1 D. y = -2x + 5 Answer: A
Parallel lines differ only in their: A. gradient B. y-intercept C. steepness D. direction Answer: B