What is the x-intercept of the following line y=-2x-1

the x intercept is where the line crosses the x axis or where y=0

so set y=0 and solve for x

0=-2x-1

solve for x

add 2x to both sides

2x=-1

divide by 2

x=-1/2

the x intercept is at x=-1/2, the point is (-1/2,0)

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)

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step-by-step explanation: