3 years ago

Find the intercept(s) of the following equation. y = 2x^2-8

Mathematics

1 answer:

grin007 [14]3 years ago

5 0

X intercepts- (2,0) and (-2,0)
y intercept- (0,-8)

You might be interested in

Can anyone help me solve this? Will mark brainliest if correct.

wlad13 [49]

Answer:

will any girl be my gîrlfriend?

8 0

3 years ago

A football player punts a ball. The path of the ball can be modeled by the equation y = –0.004x2 + x + 2.5, where x is the horiz

Galina-37 [17]

The answer is 252.5 ft

y = –0.004x² + x + 2.5
Let's take y = 0 and we'll get the quadratic equation:

–0.004x² + x + 2.5 = 0
The general formula for quadratic equation is:
ax² + bx + c = 0

a = -0.004
b = 1
c = 2.5

$x_{1,2} = \frac{-b+/- \sqrt{ b^{2}-4ac} }{2a} =\frac{-1+/- \sqrt{ 1^{2}-4*(-0.004)*2.5} }{2*(-0.004)} = \frac{-1+/- \sqrt{1+0.04} }{-0.008} = \\ 
=\frac{-1+/- \sqrt{1.04} }{-0.008} = \frac{-1+/-1.02}{-0.008}$

$x_1=\frac{-1+1.02}{-0.008} = \frac{0.02}{-0.008} = -2.5 \\ 
x_2=\frac{-1-1.02}{-0.008} = \frac{2.02}{-0.008} = 252.5$

Since distance cannot be negative (x1), the correct answer is x2 = 252.5 ft

5 0

3 years ago

Read 2 more answers

black pencils cost 75 naira each and colour pencils cost 105 naira each if 24 mixed pencils cost 2010 naira how many of them wer

KonstantinChe [14]

Answer:

number of black pencils is 17

7 0

3 years ago

A scooter can travel 72 mi per gallon of gasoline and holds 2.3 gal. the function d(x)-72x represents the distance d(x), in mile

Natasha2012 [34]

The scooter can go 165.6 miles

7 0

4 years ago

A year ago, Leila wanted to buy a necklace that cost $25.00. This year the same necklace cost $30.00. What was the percent incre

Delicious77 [7]

Answer:

20 %

Step-by-step explanation:

% Increase = Increase/Original value × 100 %

Data:

Original = $25

This year = $30

Calculations:

Increase = This year - original

= 30 - 25

= $5

% Increase = 5/25 × 100 %

= 20 %

The percent increase of the price of the necklace was 20 %.

4 0

3 years ago