exam Maths Puzzle Numerical Ability

What is the vertex? How do you find the vertex? y=x^2+x-12

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exam Other Question

FIND THREE CONSECUTIVE ODD INTEGERS.

THREE TIMES THE SECOND MINUS THE THIRD IS ELEVEN MORE THAN THE FIRST? Thank you so much for helping me with my last question, but I have another one for you. If ray BD bisects angle ABC and the measure of angle ABC is 102 degrees, solve for X and the measure of angle ABD.