Question

Which equation below is a quadratic function translated up 5 units?

Answer 1

Answer:

y=x2 + 5

Step-by-step explanation:

A quadratic function is where the graph is in the shape of a "U" or parabola.

An example of a quadratic function if the form: y= ax^2+bx+c

What all formulas have in common is that at the end of the equation there will be a variable with no x paired with it( aka the y-intercept; the 'c' equivalent in the example formula i gave ), this letter is what tells the graph to move up or down the y-axis.

So in the answers given, ask yourself, " is there any y-intercept? And if so, is it plus 5?"

** plus 5 is the graph moving up 5 units on the y-axis

And you'd find the first answer is the only equation with a y-inter.

** side note: In y = (x + 5)^2, the 5 isn't a y-inter. bc it's inside the parenthesis. Numbers in the para. (like 5) tells the graph to move left or right ( if it is a "-" it's right and "+" is left)