186k views
3 votes
Find the x and y intercepts of the graph of the equation y=x^2-5

User Starbax
by
8.7k points

1 Answer

3 votes

Answer:

x intercepts -sqrt(5), + sqrt(5)

y intercept -5

Explanation:

y = x^2 -5

to find the x intercept set y=0 and solve for x

0 = x^2-5

add 5 to each side

5 = x^2

take the square root of each side

+- sqrt(5) = sqrt(x^2)

x = +-sqrt(5) there are 2 x intercepts since it is a quadratic


to find the y intercept set x=0 and solve for y

y = 0-5

y = -5

User Johan Witters
by
8.2k points