I am brain dead right now? plz help

Sati [7]

Answer:

y intercept = -5 

slope= 4 

equation: y = 4x - 5

EXPLANATION:

FIRST, you must write the formula for a linear graph , which is y = m(x) + c

where y is any y component and x is it's corresponding x component , m is the gradient or slope and c is the constant or y intercept.

SOLUTION:

y = mx + c

finding the gradient (m)

m = y2 - y1

x2 - x1

=( (-1)-(-5) ) ÷ (1-0)

= -1+5 ÷ 1

= 4

Therefore, the slope is 4

finding the y intercept.

y = 4x + c

in the above equation, I substituted the value I had for the slope or the gradient or m.

SO NOW IM ABOUT TO FIND C

TO FIND C, YOU MUST FIRST PICK A CORRESPONDING Y AND X COMPONENT.

I CHOOSE MY Y = 3 and X = 2

Now I'm going to substitute those values into the formula.

(3) = 4(2) + C

since it's an equation with one variable, no need for simultaneous equations.

3 = 8 + c

3-8 = c

-5 = c

 

SO THATS HOW WE ARRIVED AT -5 AND 4.

 WITH THAT, the equation of the line is y = 4x - 5.

I HOPE IT WAS HELPFUL.

4 0

3 years ago

A cyclist rides her bike at a speed of

gayaneshka [121]

OK so basically when converting 2 meters per second to kilometers per hour you will get 7.2 kilometers per hour. OK so times that by 4 and you will get 28.8 kilometers in 4 hours.

8 0

3 years ago

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3x + 2 ≤ 14 -5 + 2x > 15 * -2x + 4 ≥ 18 HaLp i don't gets

sweet-ann [11.9K]

9514 1404 393

Answer:

x ≤ 4
x > 10
x ≤ -7

Step-by-step explanation:

We're guessing you want to solve for x in each case. You do this in basically the same way you would solve an equation.

1. 3x +2 ≤ 14

3x ≤ 12 . . . . . subtract 2

x ≤ 4 . . . . . . . divide by 3

__

2. -5 +2x > 15

2x > 20 . . . . . . add 5

x > 10 . . . . . . . . divide by 2

__

3. -2x +4 ≥ 18

4 ≥ 18 +2x . . . . . add 2x

-14 ≥ 2x . . . . . . . subtract 18

-7 ≥ x . . . . . . . . . divide by 2

_____

Additional comment

The statement above that the same methods for solving apply to both equations and inequalities has an exception. The exception is that some operations reverse the order of numbers, so make the inequality symbol reverse. The usual operations we're concerned with are multiplication and division by a negative number: -2 < -1; 2 > 1, for example. There are other such operations, but they tend to be used more rarely for inequalities.

You will note that we avoided division by -2 in the solution of the third inequality by adding 2x to both sides, effectively giving the variable term a positive coefficient. You will notice that also changes its relation to the inequality symbol, just as if we had left the term where it was and reversed the symbol: -2x ≥ 14 ⇔ -14 ≥ 2x ⇔ x ≤ -7 ⇔ -7 ≥ x

5 0

3 years ago

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If you have 3 cups of pineapple juice how many cups can you make?Juice recipe:Ginger ale:40% orange juice:25% pineapple juice:20

katen-ka-za [31]

If 3 cups is 20% of the whole mixture, then you multiply both numbers by 5 to find the total amount of juice. 3•5=15 cups of juice

8 0

3 years ago

Please help me. please, I need help. Help me please.

Ierofanga [76]

A. The Square Root of 11 is 3.31662479(etc.)

8 0

3 years ago

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