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andrey2020 [161]
3 years ago
7

Calculate the vertex of the quadratic function: y= -4^2 + 8x -9

Mathematics
1 answer:
expeople1 [14]3 years ago
6 0

Answer:

f(x)=8x-25

Step-by-step explanation:

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Can some one please help me i'll give brainliest..please actually answer all the questions.
NNADVOKAT [17]

Answer:

Is there a picture or a graph? There isn;t enough evidence to graph ordered pairs and points without even knowing the coordinates.

Step-by-step explanation:

7 0
3 years ago
Use the slope formula to find the slope of the line through the points (2,10) and (10,−8).
Salsk061 [2.6K]

The slope formula is the changes of two y-values over/to the changes of two x-values.

\large \boxed{m =  \frac{y_2 - y_1}{x_2 - x_1} }

Substitute two given points in the formula to find the slope. The m-term represents the slope from y = mx+b.

\large{m =  \frac{10 - ( - 8)}{2 - 10} } \\  \large{m =  \frac{10 + 8}{ - 8} } \\  \large{ m =  \frac{18} { - 8} \longrightarrow  \frac{9}{ - 4} } \\  \large \boxed{m =  -  \frac{9}{4} }

Answer

  • The slope is -9/4.

Hope this helps and let me know if you have any doubts!

6 0
3 years ago
Read 2 more answers
Plz I will give brainliest
Katyanochek1 [597]

Answer:

3.......

Step-by-step explanation:

3

6 0
3 years ago
Read 2 more answers
Is this correct? Look at pic attached
Georgia [21]

Answer:

Perfect!

Step-by-step explanation:

Complementary= 90 degrees

Supplementary= 180 degrees

Looks like you got both of those. Good job!

<1 + <2 = 90

<1 = 55

90-55=35

<2=35

<2+ <3= 180

180-35= 145

<3 = 145 degrees

You did awesome! Amazing job!

3 0
3 years ago
Mrs. Nixon went to the store to buy candy for her
AnnyKZ [126]

Answer:

$2.25

Step-by-step explanation:

First, we (always) highlight key details. In this case, we would highlight that th candy is 90 cents per pound, and the she bought 2.5 pounds. Now, we just multiply 2.5 by .90, and boom! We get $2.25. Mrs. Nixon spent $2.25 (or two dollars and twenty-five cents) on candy bars.

8 0
3 years ago
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