2 years ago

Which direction does the graph of f(x) = −18 + x2 − 3x open?

1 answer:

7 0

Please write this equation as <span>f(x) = −18 + x^2 − 3x

Rewrite it in descending order by powers of x: f(x) = x^2 - 3x - 18

Since the coefficient of the x^2 term is +, the graph opens UP.</span>

You might be interested in

Use the formula to find the slope of the line that passes through these two points. Show your work.

Dafna1 [17]

Answer:

Solution given:

$(x_1,y_1)=(1,2)$

$(x_2,y_2)=(7,7)$

now

slope: $\frac{y_2-y_1}{x_2-x_1}=\frac{7-2}{7-1}=\frac{5}{6}$

Slope: 5/6

6 0

2 years ago

Find the inverseof the function:<br> y=(x – 3)^2

ollegr [7]

Answer:

f(x)= $\sqrt{x}$ +3, - $\sqrt{x}$ +3

Step-by-step explanation:

5 0

2 years ago

HELP ME PLZZ: Francesca is making a scale drawing of the mural on a wall in her school's hallway. The mural is 12 ft high and 13

user100 [1]

Answer:

i think ur supposed to do 135 divided by 3?

Step-by-step explanation:

tell me if im right or wrong so then i can help

8 0

2 years ago

Which equation represents a line which is parallel to the line 7y - 4x = -14?

iVinArrow [24]

Answer: Any line with a slope of 4/7 and a y-intercept that is NOT -2

You should first turn the equation into y intercept form:
7y - 4x = -14; Add 4x from both sides
7y = 4x - 14; divide 7 from both sides
y = 4/7x - 2

Since you did not include choices, the answer will be the line with the slope 4/7 and without the y-intercept -2, because lines that are parallel will always have the same slope.

Example Answers: y = 4/7x + 2, y= 4/7x - 4
y = 4/7x + 10

4 0

2 years ago

What are the values for y when x is 2, 4, and 6?<br> y = 20x + 7

Mrrafil [7]

Wait what’s the value of x?

8 0

1 year ago

Read 2 more answers