i believe it's y-intercept!
to be honest i was never taught why it was the y-intercept, i was just told that it was. hope this helps!
Pythagorean theorem helps us find a sides measurements in a right triangle. the formula is a^2+b^2=c^2<span />
The order of operations is PEMDAS which is Parentheses, Exponents, Multiplication/Division, and Addition/Subtraction. So, since there are no parentheses or exponents, we would do multiplication first. 3.5x4.1 is 14.35. So, the new equation is 1.2+14.35. This equals 15.55, which is answer choice B. Hope this helps!
The roots of an equation is determined at the point where its graph passes the x-axis. In other words, the roots of the function is/are its x-intercepts. From the data points, that would be (3,0). So, the answer is A.
