Register
Need some help (: thanks! Consider the quadratic equation below. (4x+z)(3x-w)=0 If w=21, determine an x-intercept of the parabola represented by this equation. A) (21,0) B) (-7,0) C) (-21,0) or D) (7,0)
98.5k views
5 votes
Need some help (: thanks!

Consider the quadratic equation below. (4x+z)(3x-w)=0
If w=21, determine an x-intercept of the parabola represented by this equation.
A) (21,0)
B) (-7,0)
C) (-21,0) or D) (7,0)

User Khusnanadia
by
8.3k points

1 Answer

4 votes

We know that w = 21 so:


(4x+z)(3x-w)=0\\\\(4x+z)(3x-21)=0\\\\3x-21=0\\\\3x=21\qquad|/3\\\\\boxed{x=7}

Answer D) (7;0)

User Karuhanga
by
8.4k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!