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Inga [223]
3 years ago
11

The equation Y-3=-2(x+5) is written in point-slope form. What is the y-intercept of the line?

Mathematics
2 answers:
Evgen [1.6K]3 years ago
8 0

Rearranging this into slope-intercept form, we see that the y-intercept is -7.

VMariaS [17]3 years ago
3 0

Step-by-step explanation:

y - 3 = -2(x + 5)

y - 3 =-2x + -10

y-intercept x = 0

y - 3 = -10

y = -10 + 3

y = -7

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Which two equations would be most appropriately solved by using the zero product property? Select each correct answer.
ss7ja [257]

Answer:

1) (x + 4)(x - ½) = 0

4x² + 16x = 0

2) 0.25x² + 0.8x - 8 = 0

3x² - 4x = 15

Step-by-step explanation:

1) (x + 4)(x - ½) = 0

x = -4, ½

4x² + 16x = 0

4x(x + 4) = 0

x = 0, -4

2) (x - 6)(x + 9) = 0

x = 6, -9

(x - 1)² = 4

(x - 1)² - (2)² = 0

(x - 1 - 2)(x - 1 + 2) = 0

(x - 3)(x + 1) = 0

x = 3, -1

These two are easier to solve using product = 0 property, while the other two would be easier using the quadratic formula

8 0
4 years ago
The following list shows the items and prices for a restaurant order. Calculate the total amount if there is an 8% tax and the c
Andreas93 [3]

Answer:

Option B

The total amount is $63.31 if there is an 8% tax and the customer leaves a 20% gratuity.

Step-by-step explanation:

Given:

List of items                           Prices

1 Appetizer                             $8.59

2 Entrees                                $15.99 each

1 dessert                                 $4.69

2 drinks                                   $2.10 each

Total amount for the food order came to, \left ( 1\times \$ 8.59 \right +2\times \$15.99+1\times \$4.69+2\times\$2.10)=\left (\$ 8.59 \right + \$31.98+ \$4.69+\$4.20)=$49.46

Since the restaurant charges 8% as a tax on the total bill.

First, figure out the tax, 8% of $49.46=0.08\times $49.46=$3.9568

Now, figure out the Customer leaves a  gratuity, 20% of $49.46=0.20\times \$49.46=\$9.896

The total amount( including 8% tax and 20% gratuity )=$49.46+$9.896+$3.9568=$63.3128\approx \$63.31


8 0
3 years ago
Read 2 more answers
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vekshin1

Answer:

3.2537496e+30

Step-by-step explanation:

3 0
3 years ago
A biologist is studying a bacteria population that initially contains 10^3 bacteria. In the lab, the population doubles every we
iragen [17]

Answer: 8000

Step-by-step explanation:

From the question, we are informed that the expression 10³ × 2^w models the population of the bacteria after w weeks.

The number of bacteria that will be present in 3 weeks will then be:

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4 0
3 years ago
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Answer:

no

Step-by-step explanation:

2 points have the same "x"

6 0
4 years ago
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