All categories

3 years ago

What is the directrix of the parabola? (y+4)2=4(x−2)

Mathematics

2 answers:

nika2105 [10]3 years ago

7 0

Answer:

the answer is 1

Step-by-step explanation:

hram777 [196]3 years ago

4 0

Answer:

x=1

Step-by-step explanation:

for y²=4ax

directrix is x=-a

for y²=4x ,directrix is x=-1

for y²=4(x-2), shift directrix 2 units right.

so directrix is x=-1+2=1

so for (y+4)²=4(x-2) directrix is x=1

You might be interested in

Need help ! explain how you got the answer too pls:)

Likurg_2 [28]

Answer:

the answer is D

Step-by-step

14ab^3/7a^-2b^-1

= 14a^3b^4/7

=2a^3b^4

7 0

3 years ago

Identify the graphed linear equation.<br> A) y=5x+2<br> B) y=5x-2<br> C) y=-5x+2<br> D) y=-5x-2

soldi70 [24.7K]

Answer: y=-5x-2

Step-by-step explanation: If you type all of the options into desmos calculator you will come up with 4 different graphs. Just simply find the graph with your coordinates on it. hope this helped :)

7 0

2 years ago

At a store ,apples cost $5.00 for 2 pounds.what is the ratio of dollars to pounds of apples

Firdavs [7]

Answer:

$2.50 per pound of apple

Step-by-step explanation:

Or if you have to write it as a fraction $2.50/ 1

8 0

3 years ago

Read 2 more answers

Will reward brainliest!

Lina20 [59]

Option D: Two irrational solutions

Explanation:

The equation is $17+3 x^{2}=6 x$

Subtracting 6x from both sides, we have,

$3x^{2} -6x+17=0$

Solving the equation using quadratic formula,

$x=\frac{6 \pm \sqrt{36-4(3)(17)}}{2(3)}$

Simplifying the expression, we get,

$\begin{aligned}x &=\frac{6 \pm \sqrt{36-204}}{6} \\&=\frac{6 \pm \sqrt{-168}}{6} \\&=\frac{6 \pm 2 i \sqrt{42}}{6}\end{aligned}$

Taking out the common terms and simplifying, we have,

$\begin{aligned}x &=\frac{2(3 \pm i \sqrt{42})}{6} \\&=\frac{(3 \pm i \sqrt{42})}{3}\end{aligned}$

Dividing by 3, we get,

$x=1+i \sqrt{\frac{14}{3}}, x=1-i \sqrt{\frac{14}{3}}$

Hence, the equation has two irrational solutions.

8 0

3 years ago

Yuliya22 [10]

Answer:

C (-2, 0)

Step-by-step explanation:

y = x+2

intersect the x-axis when y = 0, then

0 = x+2

x = -2

7 0

3 years ago