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2 years ago

I need only part b help me please

Mathematics

1 answer:

FrozenT [24]2 years ago

8 0

Your mom should know the answer just go ask her! But it is 205 plus 980-13057 which equals to 20

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I provided the answers I just need you to show work. I’ll even mark you the Brainliest!

Sindrei [870]

The intercepts and the graph on your worksheet are not correct. Please see below for details:

$x^2-2x-3=0$ has solutions at x=-1 and x=3 (use the quadratic formula to solve). That means these are the x-intercepts, namely points:

(-1,0) and (3,0).

The y-intercept comes from setting x=0 and calculating the y value:

$y=0^2-2\cdot0-3=-3$

so the y-intercept is (0,-3).

Now to the graph: Based on the form of the function we can see this is a quadratic function and its graph will be a parabola. You can reformat the expression in the following form

$y = x^2-2x-3=(x-1)^2-4$

and that will indicate that the apex of the parabola (open up) will be at the point (1,-4).

Knowing the apex, the x intercepts, and the y intercept, we can graph it now.

Graph is in the image attached.

6 0

3 years ago

3. Naomi has earned $54 mowing lawns

kkurt [141]

Answer:

Step-by-step explanation:

3 0

3 years ago

Solve the equations. a. (x − 2)^2 = 9 b. 3(x − 2)^2 = 9 c. 6 = 24(x + 1)^2

seropon [69]

Answer: a) x = 5 or -1 b) x = √3+2

c) x = -1/2 or -3/2

Step-by-step explanation:

a) (x − 2)² = 9

First step is to take the square root of both sides to eliminate the square

√ (x − 2)² = √9

x-2 = +-3

x = +3+2

x = 5 and;

x = -3+2

x = -1

x = 5 or -1

b) 3(x-2)² = 9

First we divide both sides by 3 to get;

(x-2)² = 9/3

(x-2)² = 3

Second step is to take the square root of both sides to eliminate the square

√(x-2)² = √3

x-2 = √3

x = √3+2

c) 6 = 24(x+1)²

Dividing both sides by 24, we have

6/24 = (x+1)²

1/4 = (x+1)²

Taking the square root of both sides we have

√1/4 = √(x+1)²

= +-1/2 = x+1

x = +1/2-1 = -1/2 and;

x = -1/2-1 = -3/2

x = -1/2 or -3/2

4 0

3 years ago

Which transformations will produce similar, but not congruent, figures?

n200080 [17]

A, because anything with a dilation will not be congruent as the original PQR :))

7 0

3 years ago

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has rectangular garden that is that 2/3 yard wide by 7/4 yards long what is the area of garden show work

sasho [114]

HOPE THIS WILL HELP U!!!

If my ans was helpful, u can start following me on brainly.....###

5 0

3 years ago

Read 2 more answers