Question

The system of equations y=-3x+1/2 and y= 1/5x-1 and 4/5 is shown on the graph below. What is a reasonable estimate for the solution?

A. (0.7, -1.7)
B. (-1.7, 0,7)
C. (1.4, -3.3)
D. (-3.3, 1.4)

Answer 1

The point where the lines cross is in QIV, so x is positive and y is negative, so only options A and C are left.

The X position of the point is between x=0.5 and x=1, so...

A is the answer

Answer 2

A. (0.7, -1.7)

Explanation:

We have been graph of a system of equations. We are asked to determine the reasonable estimate for the solution.

We can see that each grid represents 0.5 units.

We can also see that both lines intersect inside between 2nd grid to right and 4th grid down from origin. The x-coordinate will be approximately 0.7 and y-coordinate will be negative 1.7

Therefore, option A is the correct choice.