Aline is represented by the equation y + 1 = x. what is the y-intercept of the line represented by the equation?

The y-intercept of the line is represented by the -1 of the equation,

To get the equation in slope-intercept form: y = mx + b

y + 1 = x

Subtract 1 from both sides

y = x - 1

The y- intercept would be the b in the equation, so in this case it would have to equal -1 to make sense

STEP 1 )

Find y of the equation y +1 = x, then y = x-1, then for x = 0 , substitute it at the equation to find the y - intercept

step 2 )

y = 0-1, y= -1, this is the value of y - intercept

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: