Answer:
3) 4x² -1
Step-by-step explanation:
A quadratic equation is a 2nd-degree polynomial equation.
1) an exponential equation (the variable is in the exponent)
2) a cubic equation (degree = 3)
3) a quadratic equation
4) a linear equation (degree = 1)
Answer:

Step-by-step explanation:
we have

we know that

I would go with j pls tell me if wrong and i will try again
simply need to fill in Y=Mx+b!
slope is 1/2, the and b (the y intercept) is 0! so y=1/2x + 0 or y=1/2x :)
4/5. 2/3 divided by 5/6 is equivalent to 2/3 multiplied by 6/5, so the answer is 4/5.