Answer:
x=-3
Step-by-step explanation:
Answer choice A is a vertical line through the the x-axis crossing through -3. It has an x-intercept of -3.
Answer choice B is a horizontal line through the y-axis crossing through -3. It has no x-intercpet.
Answer choice C is a horizontal line through the y-axis crossing through 7. It has no x-intercept.
Only A has an x-intercept of -3.
