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2 years ago

Which equation has a graph that is parallel to the graph of 2x − y = −1?

Mathematics

2 answers:

LenKa [72]2 years ago

7 0

D is your answer I’m 80%sure

maxonik [38]2 years ago

7 0

Answer:

Step-by-step explanation:

So from the first graphs equation is

2x-y=-1

therefore if we made y the subject of the formula, the equation would be

2x+1=y , this is also the same as y=2x+1

from this, the equation is clearly in the form y=mx+c so we can get the gradient

The gradient of graph one would be 2

The perpendicular gradient would be the negative reciprocal of graph one's gradient which would be -1/2

Now we look at our options and see which one has the gradient as -1/2

You might be interested in

A line has this equation: x + y = 6

Rama09 [41]

Answer:

the equation of the line will be: $y=x-4$

Step-by-step explanation:

Equation of line: x + y = 6

We need to write an equation for the perpendicular line that goes through

(5, 1).

The equation will be in slope-intercept form $y=mx+b$ where m is slope and b is y-intercept

Finding Slope:

Equation of line given is: x+y=6

Writing it in slope-intercept form: $y=-x+6$

The slope of this line is m = -1 (By comparing it with $y=mx+b$ we get m = -1)

Since the required line is perpendicular, their slopes will be opposite inverse of each other i.e. $m_1=-\frac{1}{m_1}$

So, slope of required line will be: m=1

Now, using the point (5,1) and slope m=1 we can find y-intercept

$y=mx+b\\1=1(5)+b\\1=5+b\\b=1-5\\b=-4$

So, we get y-intercept b = -4

Now, the equation of required line, having slope m=1 and y-intercept b = -4

$y=mx+b\\y=1x-4$

So, the equation of the line will be: $y=x-4$

5 0

3 years ago

On Friday Tammy’s Bakery had 70 blueberry muffins for sale. 25 blueberry muffins were sold in the morning and 36 in the afternoo

kotegsom [21]

70 - 25 = 45 then 45 - 36 = 9 so 9 muffins or B

8 0

3 years ago

Read 2 more answers

Select the correct answer.

Maurinko [17]

Answer:

D. $432.84

Step-by-step explanation:

The average daily balance is the weighted sum of the balances. The weight in each case is the number of days the account had that balance.

adb = (7×745.00 +10×585.15 +7×245.20 +7×90.75)/(7+10+7+7)

= 13,418.15/31

= 432.84

Nia's average daily balance was $432.84.

7 0

3 years ago

How do you solve this?

laila [671]

A(-3;1)
b(-6;0)
c(-5;-3)
d(-2;-2)

5 0

3 years ago

Solve the inequlity 2s+5s+12=132<br> A. s=-30<br> B. s=40<br> C. s=120<br> D. s=9

Korvikt [17]

First off, an inequality means that there is no equals sign... it will be either greater than (>) or less than (<). So we'll solve yours with the assumption that it is supposed to be greater than...

2s + 5s + 12 > 132
7s + 12 > 132
7s > 132 - 12
7s > 120
s > 120/7
s > 17 1/7

**If it was supposed to be less than instead of greater than, just change the sign. It doesn't affect the outcome.

4 0

3 years ago