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3 years ago

At which points does the graph of f(x)=2x−4 cross the x-axis and y-axis?

Mathematics

1 answer:

blagie [28]3 years ago

6 0

crosses x-axis at (2, 0 ) and y-axis at (0, - 4 )

To find where the graph crosses the x and y axes ( intercepts )

• let x = 0, in the equation for y- intercept

• let y = 0, in the equation for x- intercept

x = 0 : y = 0 - 4 = - 4 ⇒ (0, - 4 )

y = 0 : 2x - 4 = 0 ⇒ 2x = 4 ⇒ x = 2 ⇒ (2, 0 )

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Store B sells the same computer as in the Example for $1,300. Store B offers a 20% discount on the computer. The tax rate is the

I am Lyosha [343]

Answer:

$1,300 discount of 20%=$260

6 0

2 years ago

How many times bigger is the digit 8 in 89.7 than the digit 8 in 0.08?

Nesterboy [21]

Answer:

1000 times

Step-by-step explanation:

Place value of 8 in 89.7 = 80

Place value of 8 in 0.08= 0.08 (8 hundredths)

$\frac{80}{0.08} = \frac{80 \times 100}{8} = 1000 \\$

Thus, the digit 8 in 89.7 is 1000 times bigger than the digit 8 in 0.08.

4 0

3 years ago

What is the equation of the line that passes through the points (-2, -3) and (4, -5)

Jobisdone [24]

Answer:

x + 3y + 11 = 0 is the required equation.

Step-by-step explanation:

Here the given points are A( -2,-3) and B(4,-5)

Now, slope of the equation = $\frac{y_2 - y_1}{x_2 - x_1} = \frac{-5 -(-3))}{4-(-2)} = \frac{-2}{6} =-\frac{1}{3}$

Hence, the slope of the equation is m = (-1/3)

Now, by POINT SLOPE FORMULA:

The equation of a line with slope m and point (x0, y0) is given as

(y - y0) = m (x -x0)

So, here the equation of line with (4, -5) is

$y - (-5) = -\frac{1}{3} (x - 4) \implies 3( y +5) = -x + 4$

or, 3y + 15 + x-4 = 0

or, x + 3y + 11 = 0

⇒ x + 3y + 11 = 0 is the required equation.

6 0

2 years ago

How many times can 43 go into 100

lara [203]

About 2 times at least it would also be 2.3 some other numbers also

6 0

2 years ago

passing through(-9,-2) and parralel to the line whose equation is y=-5x+3 write an equation for the line in slop intercept form

sp2606 [1]

Step-by-step explanation:

y +2= 5(x+9)

y + 2 = 5x + 45

y = 5x + 43

7 0

3 years ago