•what is an algebraic expression? an exp
or more variables
• to evaluate: suositut the var
then follow the
directions: evaluate each expression using
1. 7x + 4y if x = 5 and y = -3 2. 9,

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36