Question for 50 points
solve this equation using an algebraic method: (x + 4)(x - 4) = 9
choices are:
x=5
x=4 and x=-4
x=9
x=5 and x=-5

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.