The answer is option a

The easiest way to see this is to look at the point of intersection -which must lie on both of the lines/

Now (2, -2) means x = 2 and y = -2

Checking -0.5x -0.3 y = -0.5*(2) - 0.3 *(-2) = -1 + 0.6 = -0.4 as required

and 0.1 x - 0.2y = 0.1 *(2) -0.2 * (-2) = 0.2 + 0.4 = 0.6 as required

(The other two options don't work)

The long way is to write the equations in standard form and check the lines

Example 0.1x -0,2 y= 0.6

Multiply by 10

x -2y = 6 or y = 1/2x -3 which is one of the lines (slope 1/2 and intercept -3)

Are you happy with this or do you need more help

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up