kendrawilhelmi1 kendrawilhelmi1
  • 02-01-2018
  • Mathematics
contestada

Find the x-intercepts and y-intercept for the parabola below. Write answers as (x,y) coordinates.
y=-7x2-4x+3
x-int:______________ y-int:________

Respuesta :

Louli
Louli Louli
  • 02-01-2018
The equation given is:
y = -7x^2 - 4x + 3

(1) The x intercept occurs at the point that has y = 0, therefore:
y = -7x^2 - 4x + 3
0 = -7x^2 - 4x + 3
(7x-3)(x+1) = 0
either x = 3/7 ......> the point is (3/7 , 0)
or x = -1 ......> the point is (-1,0)

(2) The y-intercept occurs at the point that has x = 0, therefore:
y = -7x^2 - 4x + 3
y = -7(0)^2 - 4(0) + 3
y = 3 ............> the point is (0,3)
Answer Link

Otras preguntas

How did shah Abbas help the safavid empire flourish
How were Southern plantations able to meet the demand for more cotton in the 1800s
a cartographer runs a printing press. true or false?
Sharon is 54 inches tall. tree in her backyard is five times as tall as she is. the floor of her treehouse is at a height that is twice as tall as she is. What
Solve for y: -y+6+6y=9
6 divided by four sevenths
how to divide 16.8÷2.4
A car traveling in a straight line has a velocity of 3.79 m/s at some instant. After 5.4 s, its velocity is 11.9 m/s. What is its average acceleration in this t
A team of runners is needed to run 1/4 mile relay race. If each runner must run 1/16 mile. How many runners will be needed?
what number is greater 0.111 or 1.001. also 1.11 or 1.01