Question

Someone help me please

Answer 1

Take two points

• (0,3)
• (5,0)
• x intercept=a=5
• y intercept=b=3

So

equation of line in intercept form

`\\ \rm\rightarrowtail (x)/(a)+(y)/(b)=1`

`\\ \rm\rightarrowtail (x)/(5)+(y)/(3)=1`

• Multiply each by 15

`\\ \rm\rightarrowtail 3x+5y=15`

Answer 2

3x + 5y = 15

Find gradient:

coordinates taken: (5, 0), (0, 3)

`\rightarrow \sf (y_2-y_1)/(x_2-x_1)`

`\rightarrow \sf (3-0)/(0-5)`

`\rightarrow \sf -(3)/(5)`

• Here the y-intercept: 3

• gradient: -3/5

equation:

`\sf \bold{ y = m(x) + b}`

`\rightarrow \sf y = -(3)/(5) x + 3`

`\rightarrow \sf y = -(3)/(5) x + (15)/(5)`

`\rightarrow \sf 5y =-3x+15`

`\rightarrow \sf 3x+5y =15`