Solve the system of linear equations by graphing.
y=-x-7
x + 2y = 4
What is the solution to the system of linear equations?
O (-4.5, 4.25)
O (-1.7, -2.8)
O (0, -7)
O (3, 0.5)

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.