C-12-Q077: In Example 8, the graphs of $2x + y = 8,\; 3x - 2y = 5$ intersect at — | প্রশ্ন করি

হোম›নবম-দশম শ্রেণি›English Version›Mathematics›Simple Simultaneous Equations in Two Variables›C-12-Q077

C-12-Q077mediumsingle_mcq

In Example 8, the graphs of $2x + y = 8,\; 3x - 2y = 5$ intersect at —

a $(3, 2)$
b $(2, 3)$
c $(0, 8)$

ব্যাখ্যা

Solving the system by substitution gives $y = 8 - 2x$ , so $3x - 2(8-2x) = 5 \Rightarrow 7x = 21 \Rightarrow x = 3$ , and then . Thus both lines pass through .

77/152

এই অধ্যায়ের আরও প্রশ্ন

C-12-Q078In Example 9, the graphs of intersect at point whose coordinates are —
C-12-Q079In Example 10, the graphical solution of is —
C-12-Q080In Example 11, the graphical solution of gives —
C-12-Q081The graphs of are —
C-12-Q082The graphs of are —
C-12-Q083In the equation , if then —
C-12-Q084In the equation , if then —
C-12-Q085If and , then —
C-12-Q086If and , then —

(0, 8)

(8, 0)

)

5⇒

7x=

21⇒

y = 2

(3, 2)

C-12-Q087The system is —

Simple Simultaneous Equations in Two Variables — সব প্রশ্ন দেখুন (152টি) →

In Example 8, the graphs of 2x+y=8, 3x−2y=52x + y = 8,\; 3x - 2y = 52x+y=8,3x−2y=5 intersect at —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

In Example 8, the graphs of $2x + y = 8,\; 3x - 2y = 5$ intersect at —