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3 years ago

The graph of y= -4x + 7 is

Mathematics

2 answers:

Rus_ich [418]3 years ago

8 0

Answer:

yeet

Step-by-step explanation:

evablogger [386]3 years ago

4 0

Answer:

See attachment.

Step-by-step explanation:

The equation of the function is

$y=-4x+7$

The slope of this function is

$m=-4$ and the y-intercept is $c=7$ .

This implies that the graph of the straight line passes through (0,7).

Let us also find the x-intercept by putting y=0 into the equation.

$0=-4x+7$

$-7=-4x$

Divide through by -4.

$\Rightarrow x=\frac{7}{4}$

Therefore the graph also passes through $(\frac{7}{4},0)$ .

We plot these two points and draw a straight line through them.

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If x + y = 4 and x2 − y2 = 64, what is the value of (x − y)?

murzikaleks [220]

The value of (x-y) is 16

Further explanation:

We have to use the given values to find the value

Given

$x+y=4\\and\\x^2-y^2=64$

We will use:

$x^2-y^2=64$

Simplifying by using: $x^2-y^2=(x+y)(x-y)$

So,

$(x+y)(x-y)=64$

As we know that x+y=4

Putting the value in equation

$(4)(x-y)=64$

Dividing both sides by 4

$\frac{4(x-y)}{4}=\frac{64}{4}\\x-y=16$

The value of (x-y) is 16

Keywords: Algebraic formulas, Simplification

Learn more about algebraic expressions at:

#LearnwithBrainly

7 0

3 years ago

Susan is 60 inches tall. Myra is 6 inches taller than Elaine, who is 4 inches shorter than susan how tall is myra

LenKa [72]

62 inchezzzzzzz so 60-4 = 56 --- 56 +6 = 62

5 0

3 years ago

Steve washed 15 cars in 3 hours.how many cars can he wash in 7 hours?

DanielleElmas [232]

35 Cars because, if you times 3 by 5 it equals 15 which means that 1 hour equals 5 cars. So you times 7 by 5 and that will give you the amount of cars that were washed.

3 0

3 years ago

The time, T (seconds) it takes for a pot of water to boil is inversely proportional to the cooker setting, H, applied to the pot

Lera25 [3.4K]

Answer:

T = 96

Step-by-step explanation:

From the question given above, we were told that the time, T (seconds) it takes for a pot of water to boil is inversely proportional to the cooker setting, H. This can be written as:

T ∝ 1/H

T = K/H

Cross multiply

K = TH

Next, we shall determine the value of K. This can be obtained as follow:

H = 8

T = 120

K =?

K = TH

K = 120 × 8

K = 960

Finally, we shall determine the value of T when H = 10. This can be obtained as illustrated below:

H = 10

K = 960

T =.?

T = K/H

T = 960/10

T = 96

6 0

3 years ago

What is the factored form of 30x2 - 25x -30?

Setler79 [48]

Answer:

Step-by-step explanation:

Here are some steps to help you

Step 1

30x2 - 25x -30 Factoring

Step 2

30x2 - 25x -30 factor out the equation

5(3x+2)(2x-3)

Step 3

5(3x+2)(2x-3) Check by simplifying

When you check, you will get the question back

Answer

5(3x+2)(2x-3)

Hope this helps

6 0

3 years ago