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3 years ago

Find the equation of a line that is parallel to y = 2x + 3 and passes through (-1, -1).

Mathematics

1 answer:

drek231 [11]3 years ago

4 0

Answer:

y = 2x +1

Step-by-step explanation:

The given line is in "slope-intercept" form, where the slope is the coefficient of x, 2, and the intercept is the added constant, 3. The parallel line will have the same slope, but its constant will be different. We can find the constant by putting the given point into an equation with the constant as the unknown:

y = 2x + b

-1 = 2(-1) +b . . . substitute for x and y

2 -1 = b . . . . . . add 2

1 = b

So the equation for the parallel line is ...

y = 2x + 1

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How many solutions does the equation have?<br> -9 = |d+4|

bezimeni [28]

Answer:

2 solutions

Step-by-step explanation:

Set up a system of equations. The absolute value produces two equations because one answer will be negative and the other positive.

d + 4 = -9

d + 4 = 9

So...

d = -13

d = 5

7 0

2 years ago

Please help with two and four

bagirrra123 [75]

Question 1)
575 = 100%
57.5= 10%
57.5 × 2= 115 (20%)

question 2)
575=100%
57.5=10%
115=20%
5.75=1%.

5.75 × 4=22.8 (4%)

22.8 (4%) + 115 (20%) =137.8(24%) which would be rounded up to 138

hope this helps♡♡~~Chyna

4 0

2 years ago

The marked price of a phone is $160. If a 30% discount is being offered, what is the discounted price of the phone?

Luda [366]

112
160 divided by 10 equals 16
16 x 3 =48
160- 48= 112
That should be right.

3 0

2 years ago

1.) IF f(x)=3x-5 and g(x)=x^2, find (fxg)(3)

kodGreya [7K]

Please use * to denote mult. here, not "x." "x" is your variable and cannnot also be a symbol for mult.

f(x)g(x) = 3x^3 - 5x^2.

Now let x = 3:

(f*g)(3) = 3(3)^3 - 5(3)^2 = 81-45 = 36 (answer)

8 0

2 years ago

Help pls asap!!!!! !!!!!

stiv31 [10]

Answer:

It is 40 degrees.

Step-by-step explanation:

You can start off by understanding this is not a right angle (exactly 90 degrees, think of a corner of a room) or and obtuse angle (more than 90 degrees, bigger than a right angle). With that information we know that it is an acute angle (less than 90 degrees, smaller than a right angle). With that we have 40 and 50 degrees left. When you compare the angle with the 40 degrees one, it is the same size. The angle 1 is a reflection of the triangle with the 40 degrees angle. Hope this helps :)

5 0

3 years ago