What is the y-intercept of the function, represented by the table of values below?

Mathematics

2 answers:

skad [1K]2 years ago

6 0

Answer:

C.2

Step-by-step explanation:

it is 2 because the y intercept is when it starts, and it starts at( 0,2)

posledela2 years ago

6 0

Answer: D.8

Step-by-step explanation:

y-intercept means the point of the line crosses the y-axis, where x = 0.

y = mx + b represent most linear equation, where m is the slope and b is the y-intercept.

Step 1: Find the slope of the line, choose two points: (-2,16) and (1,4).

slope = $\frac{y2-y1}{x2-x1}$ = $\frac{4-16}{1-(-2)}$ = $\frac{4-16}{1+2}$ = -12/3 = -4

Step 2: Solve b by choose one point to plug in. (1,4)

y = mx + b

4 = -4(1) + b [Plug in the value of x, y, and slope]

4 = -4 + b [Add 4 on both sides]

8 = b

Therefore, the y-intercept is D.8

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You have 8 times as many dimes as nickels. You have 18 dimes

fenix001 [56]

Answer:

$1.70

Step-by-step explanation:

Let the number of nickels be $x$ .

Thus, by the problem statement, the number of dimes is [/tex] 8 \cdot x = 8x. [/tex]

Therefore, there are $8x + x = 9$ coins in total. To find what $x$ is, we need to solve the equation $9x = 18.$ This can be done by dividing both sides by $9$ which gives $x=2$ . Plugging these values in tells us that there are $2$ nickels and $16$ dimes. (Test it out!) Thus, the nickels are worth $2 \cdot 5 = 10$ cents and the dimes are worth $16 \cdot 10 = 160$ cents, so in all, you have $10 + 160 = 170$ cents which is $1.70.