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Chapter 2: Q. 5 (page 89)

The intercepts of the equationy=x2-9are

Short Answer

Expert verified

x intercepts are -3 and 3

y intercept is -9

Step by step solution

01

Given information 

Given equation is

y=x2-9

02

x intercepts

To find the x-intercept(s) of an equation, let y = 0 in the equation and solve for x,

y=x2-90=x2-99=x2x2=9x=9x=卤3x=3,x=-3

x intercepts are -3, 3

03

y intercept 

To find the y-intercept(s) of an equation, let x = 0 in the equation and solve for y

y=x2-9y=(0)2-9y=-9

y intercept is -9

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