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4 years ago

Which graph represents the function y = – 2x + 4?

Mathematics

1 answer:

Aloiza [94]4 years ago

4 0

Answer:

Graph the line using the slope and y-intercept, or two points.

Slope:

y-intercept:

(

)

−

Step-by-step explanation:

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Please help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

natali 33 [55]

Let’s start with the last question since it it easiest.
714/7=42.

In the 2nd question all we need to do is divide our answer (42) by 2.
43/2=21

In the first question we need to multiply our previous answer (21) by 17.
21*17=375.

7 0

3 years ago

Valerie earns $24 per hour which expression can be used to show how much money she earns in 7 hours

emmasim [6.3K]

Y = 24 x
y= 24(7)
y=168 hrs

6 0

3 years ago

What is the scale factor ? And given that QY’ = 4.125 what is QY?

Drupady [299]

Step-by-step explanation:

Scale factor is found by making a fraction of two numbers;

In this case, 3.5/2, since the dilated line is larger

Scale factor: 1.75 (simplified)

Given that QYprime is 4.125,

4.125 * (2/3.5)

= 2.357 (rounded)

4 0

3 years ago

What is the factorization of 3x2 – 8x + 5?

ELEN [110]

we have

$3x^{2} -8x+5$

Equate the expression to zero to find the roots

$3x^{2} -8x+5=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$3x^{2} -8x=-5$

Factor the leading coefficient

$3(x^{2} -(8x/3))=-5$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$3(x^{2} -(8x/3)+(16/9))=-5+(16/3)$

$3(x^{2} -(8x/3)+(16/9))=(1/3)$

Rewrite as perfect squares

$3(x-(4x/3))^{2}=(1/3)$

$(x-(4x/3))^{2}=(1/9)$

square roots both sides

$(x-\frac{4}{3})=(+/-) \sqrt{\frac{1}{9}}$

$x=\frac{4}{3}(+/-) \frac{1}{3}$

the roots are

$x=\frac{4}{3}+ \frac{1}{3}=\frac{5}{3}$

$x=\frac{4}{3}- \frac{1}{3}=\frac{3}{3}=1$

$3x^{2} -8x+5=3(x-\frac{5}{3})(x-1)=(3x-5)(x-1)$

therefore

<u>the answer is the option</u>

$(3x-5)(x-1)$

6 0

3 years ago

Read 2 more answers

Solve the following equation.<br> 1/4 (f - 7) = 1 + 3f

Andreyy89

Answer:

f= -1

Hope this helps!

3 0

3 years ago

Read 2 more answers