7. i need this answer QUICK!!

Mathematics

1 answer:

Makovka662 [10]3 years ago

5 0

Answer:

It's D. No; a range value has two domain values

Step-by-step explanation:

The domain is the set of all x or input values. We may describe it as the collection of the first values in the ordered pairs.

The range is the set of all y or output values. We may describe it as the collection of the second values in the ordered pairs.

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Mr. Patrick teaches math to 1515 students. He was grading tests and found that when he graded everyone's test except Payton's, t

julsineya [31]

Given:
15 students
average grade: 80 for 14 students
average grade: 81 for 15 students

80 * 14 = 1120
81 * 15 = 1215

1215 - 1120 = 95

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7 0

3 years ago

Can you help me im not that good at math and its a clear photo y =___x^2+__x+______

geniusboy [140]

Vertex/General Form: y = a(x - h)^2 + k, with (h,k) as the vertex
(x + y)^2 = x^2 + 2xy + y^2
Standard Form: y = ax^2 + bx + c

So before I put the equation into standard form, I'm first going to be putting it into vertex form. Since the vertex appears to be (-1,7), plug that into the vertex form formula:

$y=a(x-(-1))^2+7\\y=a(x+1)^2+7$

Next, we need to solve for a. Looking at this graph, another point that is in this line is the y-intercept (0,5). Plug (0,5) into the x and y placeholders and solve for a as such:

$5=a(0+1)^2+7\\5=a(1)^2+7\\5=a+7\\-2=a$