Answer:
-4
Step-by-step explanation:
We have the coordinates (6, 3) and (8, 4), allowing us to calculate the slope (or gradient). To do this, you divide the change in y by the change in x, which is 1/2 which is a half.
The form of a linear equation is y = mx + c, where m is the gradient and c is the y-intercept.
We have the gradient, so we can put it in the equation:
y = x/2 + c
We can now substitute in a pair of our coordinates and rearrange to find the y-intercept.
3 = 6/2 + c
3 = 3 + c
c = 0
Therefore the equation for our line is y = x/2.
We can now put in the y coordinate we were given to work out the corresponding x coordinate:
-2 = x/2
x = -4
Therefore n is -4.
Answer:
D
Step-by-step explanation:
To find a situation for 60−15x≥7, look for a story where 60 is a constant value that is decreasing by 15 for a number of times and where equal to or at least 7 is an option.
A. x would be weeks and it would decrease by 7x. This is not it.
B. 15 songs packages would have x be the number of packages not the price. This is not it.
C. This doesn't work either because if you want to owe them less than 7 it would have the sign < not >.
D. You have 60 to spend and you decrease it by $15 for each hat you buy till you save $7. This is it.
Answer:
D
Step-by-step explanation:
To evaluate f(5) substitute x = 5 into f(x)
f(5) = (3 × 5) + 2 = 15 + 2 = 17 → D
Answer:
20 square units
Step-by-step explanation:
Area = 1/2 * base * height
Area = 1/2 * 10 * 4
Area = 20 sqaure units
Answer:
Then the area of the triangle is 240 m²
Step-by-step explanation:
Area of a triangle:
The area of a triangle is given by the multiplication of its height and altitude, divided by 2.
In this question:
Base = 24m, altitude = 20m. So
Then the area of the triangle is 240 m²
