Will give brainliest when the function f(x) = 4(2)x is changed to f(x) = 4(2)x − 13, what is the effect? -there is no change to the graph because the exponential portion of the function remains the same. -the x-intercept is 13 spaces higher. -the y-intercept is 13 spaces lower. -all input values are moved 13 spaces to the left.

You have added -13 to every function value, so every point on the graph is 13 "spaces" lower. The y-intercept is one such point, so ...

-The y-intercept is 13 spaces lower.

Comment on notation

In plain text an exponent is preceded by a caret (^). If the exponent has arithmetic involved (addition, subtraction, multiplication, division), then the entire exponent needs to be enclosed in parentheses. When an exponential term that has a constant base is multiplied by another constant, then some sort of multiplication indicator is useful. Your expressions might be written ...

... f(x) = 4·2^x

... f(x) = 4·2^x - 13 . . . . . . or, better, f(x) = 4(2^x) - 13 . . so it is clear -13 is not part of the exponent

because 1.2 isnt half of 6 duh

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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