Log out Go to App
Go to App

Learning Materials

Features

Discover

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=±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

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

In Problems 7–18, match each graph to one of the following functions:

A.y=x2+2B.y=-x2+2C.y=x+2D.y=-x+2E.y=(x-2)2F.y=-(x+2)2G.y=x-2H.y=-x+2I.y=2x2J.y=-2x2K.y=2xL.y=-2x

In Problems 7–18, match each graph to one of the following functions:

A.y=x2+2B.y=-x2+2C.y=x+2D.y=-x+2E.y=(x-2)2F.y=-(x+2)2G.y=x-2H.y=-x+2I.y=2x2J.y=-2x2K.y=2xL.y=-2x

Solve the inequality: 3-2x>5. Graph the solution set.

A wire of length xis bent into the shape of a square.

Part (a): Express the perimeter pof the square as a function of x.

Part (b): Express the area Aof the square as a function of x.

Test the equation y=5x2-1for symmetry with respect to the x-axis, the y-axis, and the origin.
See all solutions

Recommended explanations on Math Textbooks

Theoretical and Mathematical Physics

Read Explanation

Logic and Functions

Read Explanation

Pure Maths

Read Explanation

Decision Maths

Read Explanation

Geometry

Read Explanation

Applied Mathematics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free