Answer:
yes
Step-by-step explanation:
Answer:
once
Step-by-step explanation:
since the equation is liner, with x simply to the first power, it will only cross the x axis once. x^2 would cross the x axis twice, x^3 would cross it three times, and so on
Answer:

Step-by-step explanation:

If You mean A sum to write here's one :
31+3