MATH SOLVE

6 months ago

Q:
# Determine which of the following equations, when graphed, intersect at the point (4, 0).Select all that apply.- x - y = 4x - y = 42 x + y = 72 x + y = -7x + y = 42 x - y = 7

Accepted Solution

A:

Answer:x - y = 4
x + y = 4
Step-by-step explanation:Substitute x=4 and y=0 in every equation. If both sides of the equal sign are equal, (LS=RS, left side equals right side) then the graph intersects at (4,0).- x - y = 4
- (4) - 0 = 4-4 = 4LS≠RSx - y = 4
4 - 0 = 4
4 = 4LS=RS2 x + y = 7
2(4) + 0 = 7
8 = 7LS≠RS2 x + y = -7
2(4) + 0 = -7
8 = -7LS≠RSx + y = 4
4 + 0 = 4
4 = 4LS=RS2 x - y = 72(4) - 0 = 78 - 0 = 78 = 7LS≠RSOnly x - y = 4 and x + y = 4 intersect at (4, 0).