Question

7. What is the value of 'a' if the
point (6,4) lies on the graph of
the line 10x+ ay = 40
O -5
O 5
O 4
​

Answer 1

Hi!

this must be your answer

Answer 2

Step-by-step explanation:

Given:-

the point(6,4) lies on the graph of the line 10x+ay=40

To find:-

value of a

Solution:-

if The point(6,4) lies on the graph then it is a solution.

${:}\longrightarrow$10 (6)+a(4)=40

${:}\longrightarrow$60+4a=40

${:}\longrightarrow$4a=40-60

${:}\longrightarrow$4a=-20

${:}\longrightarrow$a=${\frac{{\cancel {-20}}}{{\cancel{4}}}}$

${:}\longrightarrow$${\underline{\boxed {\bf {a=-5}}}}$