3 years ago

Help, this is a algebra question. Answer ASAP if you know the answer. I will give brainliest to whoever responds correct.

Mathematics

1 answer:

zaharov [31]3 years ago

4 0

Answer:

B. Substitute 0 for y and solve for x.

Step-by-step explanation:

Finding the zeroes means solving for x when y = 0.

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PLEASE ANSWER ASAP! 15 POINTS ! NO SCAM LINKS OR REPORTED :)

mixas84 [53]

Answer: C

Step-by-step explanation: You have to plug in the values to see if it matches the values on the table of values

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3 years ago

Find the solutions to the system of equations. Select all that apply.

DochEvi [55]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=x^2-4&(1)\\y=-2x-5&(2)\end{array}\right\\\\\text{Put (1) to (2):}\\\\x^2-4=-2x-5\qquad\text{add}\ 2x\ \text{and 5 to both sides}\\\\x^2+2x+1=0\\\\x^2+x+x+1=0\\\\x(x+1)+1(x+1)=0\\\\(x+1)(x+1)=0\\\\(x+1)^2=0\iff x+1=0\qquad\text{subtract 1 from both sides}\\\\x=-1\\\\\text{put the value of}\ x\ \text{to}\ (2):\\\\y=-2(-1)-5\\\\y=2-5\\\\y=-3$