A lines Y intercept is changed from -1 to 0 which way did it shift

By studying the change of the y-intercept, we can see that the shift is of one unit upwards.In which way did the line shift?We know that the original y-intercept of the line is y = -1, then the line is of the form:y = a*x - 1Where a is the slope.Now we apply a vertical shift of N units, this is written as:y = a*x - 1 + NAnd we know that the new y-intercept is 0, so:y = a*0 - 1 + N = 0y = -1 + N = 0-1 + N = 0N = 1The shift is of 1 unit up.Learn more about vertical shifts:https://brainly.com/question/26246140#SPJ1