Is the following relation a function?
two circles are shown, one labeled x and the other labeled y. the x circle contains the numbers 6, negative 1, 4, and 0. the circle contains the numbers 2, negative 1, and 3. arrows map numbers from x to numbers from y. there are arrows going from 6 to negative 1, from negative 1 to 2, from 4 to 3, and from 0 to 3.
hey there! : )
we're trying to get "x" onto its own side of the equal sign, so let's start out by adding 5 to both sides of the equal sign.
x/4 -5 + 5 = -8 + 5
x/4 = -3
now, we need to get rid of "4" as the denominator (the bottom number in a fraction). so to do so, we must multiply both sides by 4.
x/4 · 4 = -3 · 4
x = -12
so, our answer is your second answer choice : -12
~hope i ! ~
answer: it costed him 4 tokens to play it each time.
20-8=12 12/3 because he played it three times=4
yes to all 3 questions.
3x^2(x-1) + -3x^3+ 4x^2-2x+1
= 3x^3 - 3x^2 - 3x^3 + 4x^2 - 2x + 1
= x^2 - 2x + 1,
so a + b is a polynomial.
3x^2(x-1) - (-3x^3+ 4x^2-2x+1)
= 3x^3 - 3x^2 + 3x^3 - 4x^2 + 2x - 1
= 6x^3 - 7x^2 + 2x - 1.
so a - b is also a polynomial.
3x^2(x-1)( -3x^3+ 4x^2-2x+1)
= (3x^3 - 3x^2) ( -3x^3 + 4x^2 - 2x + 1)
= -9x^6 + 12x^5 - 6x^4 + 3x^3 + 9x^5 - 12x^4 + 6x^3 - 3x^2
= -9x^6 + 21x^5 - 18x^4 + 9x^3 - 3x^2.
so a * b is a polynomial.
two circles are shown, one labeled x and the other label...