2 years ago

Find the y-intercept of the line on the graph. Enter the correct answer.

Mathematics

1 answer:

Wittaler [7]2 years ago

8 0

Check the picture below.

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You can talk on the phone y minutes on day x of month according to the equation y=2x+1 the cell phone company clams you talked 1

ValentinkaMS [17]

Answer: They are wrong

Step-by-step explanation: x is given a value in the problem. Since x equals 4, We plug x into the equation.

y = 2(4) + 1

Y is actually equal to 9 minutes, not twelve.

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3 years ago

Sin x degrees= 4/15<br> HELLLPPPPPPPPP PLEASEEEEEEEEE!!!!!

Umnica [9.8K]

From here, just make it inverse:

$sin^{-1} ( \frac{4}{15}) = x$
$x=15.46600995.....$

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3 years ago

Read 2 more answers

A) 9<br> B) 0<br> C) Undefined<br> D) 6

mezya [45]

Answer:

Step-by-step explanation:

The slope of a horizontal line is equal to 0.

The slope of a vertical line is undefined.

The formula of a slope:

$m=\dfrac{y_2-y_!}{x_2-x_1}$

Put the coordinates of the pojnts from the graph (2, 9) and (4, 9):

$d=\dfrac{9-9}{4-2}=\dfrac{0}{2}=0$

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3 years ago

Write a numerical expression

vekshin1

259-85+62÷2 is the answer

3 0

3 years ago

5. The mapping f: xax² + bx + c defined on the set of real numbers is such that f(0) = -4,f(1)-1 and/(-1)= -5. Find a, b and c.

Marrrta [24]

It looks like you're saying

$f(x) = ax^2 + bx + c$

and you're asked to find $a,b,c$ given $f(0)=-4$ , $f(1)=-1$ , and $f(-1)=-5$ .

Evaluate $f$ at the three given points:

$x=0 \implies f(0) = \boxed{c = -4}$

$x=1 \implies f(1) = -1 = a + b + c \implies a+b = 3$

$x=-1 \implies f(-1) = -5 = a - b + c \implies a - b = -1$

$(a+b) + (a-b) = 3 + (-1) \implies 2a = 2 \implies \boxed{a=2}$

$a-b = -1 \implies \boxed{b=3}$

and the mapping is $f(x) = 2x^2 + 3x - 4$ .

5 0

1 year ago