Welcome to Westonci.ca, where you can find answers to all your questions from a community of experienced professionals. Explore thousands of questions and answers from a knowledgeable community of experts on our user-friendly platform. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.
Sagot :
1.
[tex]y=3(x-6)^2-9 \\ \\ \hbox{x-intercept - y=0} \\ 0=3(x-6)^2-9 \\ 9=3(x-6)^2 \ \ \ |\div 3 \\ 3=(x-6)^2 \\ \sqrt{3}=\sqrt{(x-6)^2} \\ \pm \sqrt{3}=x-6 \\ \pm \sqrt{3}+6=x \\ x=6+\sqrt{3} \ \lor \ x=6-\sqrt{3}} \\ \\ \hbox{y-intercept - x=0} \\ y=3(0-6)^2-9 \\ y=3 \times (-6)^2-9 \\ y=3 \times 36-9 \\ y=108-9 \\ y=99 \\ \\ \boxed{\hbox{x-intercepts: } 6+\sqrt{3} \hbox{ and } 6-\sqrt{3}} \\ \boxed{\hbox{y-intercept: } 99}[/tex]
2.
[tex]y=-2(x+5)^2+3 \\ \\ \hbox{x-intercept - y=0} \\ 0=-2(x+5)^2+3 \\ -3=-2(x+5)^2 \ \ \ |\div (-2) \\ \frac{3}{2}=(x+5)^2 \\ \sqrt{\frac{3}{2}}=\sqrt{(x+5)^2} \\ \pm \sqrt{\frac{3}{2}}=x+5 \\ \pm \sqrt{\frac{3}{2}}-5=x \\ x=\sqrt{\frac{3}{2}}-5 \ \lor \ x=-\sqrt{\frac{3}{2}}-5 \\ \\ \hbox{y-intercept - x=0} \\ y=-2(0+5)^2+3 \\ y=-2 \times 5^2 +3 \\ y=-2 \times 25+3 \\ y=-50+3 \\ y=-47 \\ \\ \boxed{\hbox{x-intercepts: } \sqrt{\frac{3}{2}}-5 \hbox{ and } -\sqrt{\frac{3}{2}}-5} \\ \boxed{\hbox{y-intercept: } -47}[/tex]
[tex]y=3(x-6)^2-9 \\ \\ \hbox{x-intercept - y=0} \\ 0=3(x-6)^2-9 \\ 9=3(x-6)^2 \ \ \ |\div 3 \\ 3=(x-6)^2 \\ \sqrt{3}=\sqrt{(x-6)^2} \\ \pm \sqrt{3}=x-6 \\ \pm \sqrt{3}+6=x \\ x=6+\sqrt{3} \ \lor \ x=6-\sqrt{3}} \\ \\ \hbox{y-intercept - x=0} \\ y=3(0-6)^2-9 \\ y=3 \times (-6)^2-9 \\ y=3 \times 36-9 \\ y=108-9 \\ y=99 \\ \\ \boxed{\hbox{x-intercepts: } 6+\sqrt{3} \hbox{ and } 6-\sqrt{3}} \\ \boxed{\hbox{y-intercept: } 99}[/tex]
2.
[tex]y=-2(x+5)^2+3 \\ \\ \hbox{x-intercept - y=0} \\ 0=-2(x+5)^2+3 \\ -3=-2(x+5)^2 \ \ \ |\div (-2) \\ \frac{3}{2}=(x+5)^2 \\ \sqrt{\frac{3}{2}}=\sqrt{(x+5)^2} \\ \pm \sqrt{\frac{3}{2}}=x+5 \\ \pm \sqrt{\frac{3}{2}}-5=x \\ x=\sqrt{\frac{3}{2}}-5 \ \lor \ x=-\sqrt{\frac{3}{2}}-5 \\ \\ \hbox{y-intercept - x=0} \\ y=-2(0+5)^2+3 \\ y=-2 \times 5^2 +3 \\ y=-2 \times 25+3 \\ y=-50+3 \\ y=-47 \\ \\ \boxed{\hbox{x-intercepts: } \sqrt{\frac{3}{2}}-5 \hbox{ and } -\sqrt{\frac{3}{2}}-5} \\ \boxed{\hbox{y-intercept: } -47}[/tex]
We appreciate your time. Please come back anytime for the latest information and answers to your questions. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.