20.3k views
3 votes
HELP ME WITH A AND B PLEASEE

HELP ME WITH A AND B PLEASEE-example-1
User Rico
by
8.3k points

1 Answer

3 votes

Answer:

Step-by-step explanation: First, look at the intercepts for lines A and B.

Line A has an intercept of 4

Line B has an intercept of 12

Then choose two points on line a that perfectly go through without being a decimal on line A. I'll choose 0,4 and 1,6. The subtract to find the slope of the line, you will format this as y/x.

(x1-x2) 0-1=-1 so -1 is your denominator.

(y1-y2) 4-6=-2 so -2 is your numerator

That leaves us with the slope of -2/-1 or simply, just 2.

You know that slope intercept for is y=mx+b so the equation would be:

y=2x+4 for line A.

Now do the same thing for line B.

(0,12), (3,10)

0-3= -3 so y/-3

12-10 is 2 so 2/-3 or just -2/3

You put that into slope intercept form and that would be:

y=-2/3x+12 for line B

To Find the point of intersect just find where they're intersecting so (3,10) is the solution to the system of equations.

User HalR
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.