What is the equation of parabola whose focus is (-2,1) and directrix is:x=2​

What other information do you need to prove triangle dac=bca by asa

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?